2,750,000 Shares PALMSOURCE, INC. Common Stock ($0.001 Par Value) UNDERWRITING AGREEMENT

EXHIBIT 1.1

2,750,000 Shares

PALMSOURCE, INC.

Common Stock

($0.001 Par Value)

UNDERWRITING AGREEMENT

March , 2004

Deutsche Bank Securities Inc.

▇▇▇▇▇▇▇ & Company, Inc.

First Albany Capital Inc.

As Representatives of the

Several Underwriters

c/o Deutsche Bank Securities Inc.

▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇

▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇

Ladies and Gentlemen:

PalmSource, Inc., a Delaware corporation (the “Company”), proposes to sell to the several underwriters (the “Underwriters”) named in Schedule I hereto for whom you are acting as representatives (the “Representatives”) an aggregate of 2,750,000 shares of the Company’s Common Stock, $0.001 par value (the “Firm Shares”). The respective amounts of the Firm Shares to be so purchased by the several Underwriters are set forth opposite their names in Schedule I hereto. The Company also proposes to sell to the Underwriters at the Underwriters’ option an aggregate of up to 412,500 additional shares of the Company’s Common Stock (the “Option Shares”) as set forth below.

As the Representatives, you have advised the Company (a) that you are authorized to enter into this Agreement on behalf of the several Underwriters, and (b) that the several Underwriters are willing, acting severally and not jointly, to purchase the numbers of Firm Shares set forth opposite their respective names in Schedule I, plus their pro rata portion of the Option Shares if you elect to exercise the over-allotment option in whole or in part for the accounts of the several Underwriters. The Firm Shares and the Option Shares (to the extent the aforementioned option is exercised) are herein collectively called the “Shares.”

In consideration of the mutual agreements contained herein and of the interests of the parties in the transactions contemplated hereby, the parties hereto agree as follows:

1. REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

The Company represents and warrants to each of the Underwriters as follows:

(a) A registration statement on Form S-1 (File No. 333-111871) with respect to the Shares has been prepared by the Company in conformity with the requirements of the Securities Act of 1933, as amended (the “Act”), and the rules and regulations (the “Rules and Regulations”) of the Securities and Exchange Commission (the “Commission”) thereunder and has been filed with the Commission. Copies of such registration statement, including any amendments thereto, the preliminary prospectuses (meeting the requirements of the Rules and Regulations) contained therein and the exhibits, financial statements and schedules, as finally amended and revised, have heretofore been delivered by the Company to you. Such registration statement, together with any registration statement filed by the Company pursuant to Rule 462 (b) of the Act, is herein referred to as the “Registration Statement,” which shall be deemed to include all information omitted therefrom in reliance upon Rule 430A and contained in the Prospectus referred to below, has become effective under the Act and no post-effective amendment to the Registration Statement has been filed as of the date of this Agreement. “Prospectus” means the form of prospectus first filed with the Commission pursuant to Rule 424(b). Each preliminary prospectus included in the Registration Statement prior to the time it becomes effective is herein referred to as a “Preliminary Prospectus.” Any reference herein to the Registration Statement, any Preliminary Prospectus or to the Prospectus or to any amendment or supplement to any of the foregoing documents shall be deemed to refer to and include any documents incorporated by reference therein, and, in the case of any reference herein to any Prospectus, also shall be deemed to include any documents incorporated by reference therein, and any supplements or amendments thereto, filed with the Commission after the date of filing of the Prospectus under Rules 424(b) or 430A, and prior to the termination of the offering of the Shares by the Underwriters.

(b) The Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the State of Delaware, with corporate power and authority to own or lease its properties and conduct its business as described in the Registration Statement. Exhibit A hereto contains a complete list of each of the subsidiaries of the Company (collectively, the “Subsidiaries”). Each of the Subsidiaries has been duly incorporated (in the case of a corporation) or duly formed (in the case of a limited liability company) and is validly existing as a corporation or a limited liability company in good standing under the laws of the jurisdiction of its incorporation or formation, and has the corporate or limited liability company power and authority to own or lease its properties and conduct its business as described in the Registration Statement. The Subsidiaries are the only subsidiaries, direct or indirect, of the Company. The Company and each of the Subsidiaries are duly qualified to transact business and in good standing in all jurisdictions in which the conduct of their business requires such qualification, except where failure to be so qualified or be in good standing would not individually or in the aggregate have a material adverse effect on the earnings, condition (financial or otherwise), business, operations, management, properties, assets, rights, stockholders’ equity, or results of operations of the Company and its Subsidiaries taken as a

whole (“Material Adverse Effect”). The outstanding shares of capital stock (in the case of a corporation) or interests (in the case of a limited liability company) of each of the Subsidiaries have been duly authorized and validly issued, are fully paid and non-assessable and are owned as set forth on Exhibit A hereto free and clear of all liens, encumbrances and equities and claims; and no options, warrants or other rights to purchase, agreements or other obligations to issue or other rights to convert any obligations into shares of capital stock or ownership interests in the Subsidiaries are outstanding. None of the Subsidiaries are “significant subsidiaries” within the meaning of Section 1.02(w) of Regulation S-X under the Rules and Regulations.

(c) The outstanding shares of Common Stock of the Company have been duly authorized and validly issued and are fully paid and non-assessable; the Shares to be issued and sold by the Company have been duly authorized and when issued and paid for as contemplated herein will be validly issued, fully paid and non-assessable; and no preemptive rights of stockholders exist with respect to any of the Shares or the issue and sale thereof. Neither the filing of the Registration Statement nor the offering or sale of the Shares as contemplated by this Agreement gives rise to any rights, other than those which have been waived or satisfied, for or relating to the registration of any shares of Common Stock.

(d) The information set forth under the caption “Capitalization” in the Prospectus is true and correct as of the date therein indicated and the Company’s authorized capitalization as set forth in the Prospectus has not changed since the date therein indicated. All of the Shares conform to the description thereof contained in the Registration Statement. The statements set forth in the Prospectus under the caption “Description of Capital Stock”, insofar as they purport to constitute a summary of the terms of the Shares and under the caption “Underwriting”, insofar as they purport to describe the provisions of the laws and documents referred to therein, are accurate, complete and fair in all material respects. The form of certificates for the Shares conforms to the corporate law of the jurisdiction of the Company’s incorporation.

(e) The Commission has not issued an order preventing or suspending the effectiveness of the Registration Statement or the use of any Prospectus relating to the proposed offering of the Shares nor instituted proceedings for that purpose. The Registration Statement contains, and the Prospectus and any amendments or supplements thereto will contain, all statements which are required to be stated therein by, and will conform in all material respects to the requirements of the Act and the Rules and Regulations. The Registration Statement and any amendment thereto do not contain, and will not contain, any untrue statement of a material fact and do not omit, and will not omit, to state any material fact required to be stated therein or necessary to make the statements therein not misleading. The Prospectus and any amendments and supplements thereto do not contain, and will not contain, any untrue statement of material fact; and do not omit, and will not omit, to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that the Company makes no representations or warranties as to information contained in or omitted from the Registration Statement or the Prospectus, or any such amendment or supplement, in reliance upon, and in conformity with, written information furnished to the Company by or on behalf of any Underwriter through the Representatives, specifically for use in the preparation thereof.

(f) The consolidated financial statements of the Company and the Subsidiaries, together with related notes and schedules as set forth in the Registration Statement, present fairly the financial position and the results of operations and cash flows of the Company and the consolidated Subsidiaries, at the indicated dates and for the indicated periods. Such financial statements and related schedules have been prepared in accordance with United States generally accepted principles of accounting, consistently applied throughout the periods involved, except as disclosed therein, and all adjustments necessary for a fair presentation of results for such periods have been made. The summary financial and statistical data included in the Registration Statement presents fairly the information shown therein and such data has been compiled on a basis consistent with the financial statements presented therein and the books and records of the Company. The pro forma financial statements and other pro forma financial information included in the Registration Statement and the Prospectus present fairly the information shown therein, have been prepared in accordance with the Commission’s rules and guidelines with respect to pro forma financial statements, have been properly compiled on the pro forma bases described therein, and, in the opinion of the Company, the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions or circumstances referred to therein.

(g) PricewaterhouseCoopers LLP, who have certified certain of the financial statements filed with the Commission as part of the Registration Statement, are independent public accountants as required by the Act and the Rules and Regulations. Except as described in the Registration Statement and as preapproved in accordance with the requirements set forth in Section 10A of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), PricewaterhouseCoopers has not engaged in any “prohibited activities” (as defined in Section 10A of the Exchange Act) on behalf of the Company.

(h) Except as set forth in the Registration Statement, there is no action, suit, claim or proceeding pending against the Company or any of the Subsidiaries, or of which any property of the Company or any of the Subsidiaries is subject, before any court or administrative agency or otherwise which if determined adversely to the Company or any of its Subsidiaries is reasonably likely to result individually or in the aggregate in a Material Adverse Effect, a material adverse effect on the prospects of the Company as described in the Prospectus or prevent the consummation of the transactions contemplated hereby; and to the Company’s knowledge following due inquiry, no such actions, suits, claims or proceedings are threatened or contemplated by governmental authorities or others.

(i) The Company and the Subsidiaries have good and marketable title to all of the properties and assets reflected in the consolidated financial statements hereinabove described or described in the Registration Statement, subject to no lien, mortgage, pledge, charge or encumbrance of any kind except those reflected in such financial statements or described in the Registration Statement or which are not material in amount. The Company and the Subsidiaries occupy their leased properties under valid and binding leases conforming in all material respects to the description thereof set forth in the Registration Statement.

(j) The Company and the Subsidiaries have filed all Federal, State, local and foreign tax returns which have been required to be filed and have paid all taxes indicated by such returns and all assessments received by them or any of them to the extent that such taxes have

become due and are not being contested in good faith and for which an adequate reserve for accrual has been established in accordance with generally accepted accounting principles. All tax liabilities have been adequately provided for in the financial statements of the Company, and the Company does not know of any actual or proposed additional material tax assessments.

(k) Since the respective dates as of which information is given in the Registration Statement, as it may be amended or supplemented, there has not been any material adverse change or any development or event that is reasonably likely to result in a Material Adverse Effect or a material adverse effect on the prospects of the Company as described in the Prospectus, and there has not been any material transaction entered into or any material transaction that is probable of being entered into by the Company or the Subsidiaries, other than transactions in the ordinary course of business and changes and transactions described in the Registration Statement, as it may be amended or supplemented. The Company and the Subsidiaries have no material contingent obligations that are not disclosed in the Company’s financial statements which are included in the Registration Statement.

(l) Neither the Company nor any of the Subsidiaries is or with the giving of notice or lapse of time or both, will be (i) in violation of or in default under its certificate of incorporation or by-laws (or other charter documents) or (ii) in breach of or default under any agreement, lease, contract, indenture, mortgage, deed of trust, or other instrument or obligation to which it is a party or by which it, or any of its properties, is bound and, solely with respect to this clause (ii), which breach or default would have a Material Adverse Effect. The issuance and sale of the Shares by the Company and the execution and delivery of this Agreement and the consummation of the transactions herein contemplated and the fulfillment of the terms hereof will not result in a breach or violation of any of the terms or provisions of, or constitute a default under, any agreement, lease, contract, indenture, mortgage, deed of trust or other instrument or obligation to which the Company or any Subsidiary is a party or by which the Company or any Subsidiary or any of their respective properties is bound, or of the certificate of incorporation or by-laws (or other charter documents) of the Company or any of the Subsidiaries or any law, order, rule or regulation judgement, order, writ or decree applicable to the Company or any Subsidiary of any court or of any government, regulatory body or administrative agency or other governmental body having jurisdiction over the Company or any of the Subsidiaries or any of their properties, except for such breaches and violations (other than breaches or violations of the certificate of incorporation or by-laws (or other charter documents) of the Company or any of the Subsidiaries) as would not, individually or in the aggregate, result in a Material Adverse Effect.

(m) The execution and delivery of, and the performance by the Company of its obligations under, this Agreement has been duly and validly authorized by all necessary corporate action on the part of the Company, and this Agreement has been duly executed and delivered by the Company.

(n) Each approval, consent, order, authorization, designation, declaration or filing by or with any regulatory, administrative or other governmental body necessary in connection with the execution and delivery by the Company of this Agreement and the consummation of the transactions herein contemplated (except such additional steps as may be required by the Commission, the National Association of Securities Dealers, Inc. (the “NASD”) or such additional steps as may be necessary to qualify the Shares for public offering by the

Underwriters under state securities or Blue Sky laws) has been obtained or made and is in full force and effect.

(o) The Company and each of the Subsidiaries hold all material licenses, certificates and permits from governmental authorities which are necessary to the conduct of their businesses; the Company and the Subsidiaries each own or possess adequate rights to use all patents, patent rights, trademarks, trade names, service marks, service names, copyrights, license rights, know-how (including trade secrets and other unpatented and unpatentable proprietary or confidential information, systems or procedures) and other intellectual property rights (“Intellectual Property”) necessary to carry on their business in the manner described in the Prospectus in all material respects; and, except as disclosed in the Prospectus, neither the Company nor any of the Subsidiaries has knowledge of, is aware of any facts that would constitute the reasonable basis for any claim of, or has received any notice of, any infringement of or conflict with any Intellectual Property of any other person or entity that, if determined adversely to the Company or any of its Subsidiaries, would individually or in the aggregate have a Material Adverse Effect. The Company has taken reasonable steps necessary to secure interests in such Intellectual Property from its contractors. There are no outstanding options, licenses or agreements of any kind relating to the Intellectual Property of the Company that are required to be described in the Prospectus and are not described in all material respects. The Company is not a party to or bound by any options, licenses or agreements with respect to the Intellectual Property of any other person or entity that are required to be set forth in the Prospectus and are not described in all material respects. None of the technology employed by the Company has been obtained or is being used by the Company in violation of any contractual obligation binding on the Company or, to the best knowledge of the Company, binding on any of its officers, directors or employees, or otherwise in violation of the rights of any persons; except as set forth in the Registration Statement, the Company has not received any written or oral communications alleging that the Company has violated, infringed or conflicted with, or, by conducting its business as set forth in the Prospectus, would violate, infringe or conflict with, any of the Intellectual Property of any other person or entity. The Company knows of no infringement by others of Intellectual Property owned by or licensed to the Company, except in the case where such infringement is not reasonably likely to result in a Material Adverse Effect.

(p) Neither the Company, nor to the Company’s knowledge, any of its affiliates, has taken or will take, directly or indirectly, any action designed to cause or result in, or which has constituted or which might reasonably be expected to constitute, the stabilization or manipulation of the price of the shares of Common Stock to facilitate the sale or resale of the Shares. The Company acknowledges that the Underwriters may engage in passive market making transactions in the Shares on the Nasdaq National Market in accordance with Regulation M under the Exchange Act.

(q) Neither the Company nor any Subsidiary is or, after giving effect to the offering and sale of the Shares contemplated hereunder and the application of the net proceeds from such sale as described in the Prospectus, will be an “investment company” within the meaning of such term under the Investment Company Act of 1940, (as amended, the “1940 Act”) and the rules and regulations of the Commission thereunder.

(r) The Company and each of its Subsidiaries that has operations has established and maintains a system of internal accounting controls sufficient to provide reasonable assurances that (i) transactions are executed in accordance with management’s general or specific authorization; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain accountability for assets; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

(s) The Company and each of its Subsidiaries carry, or are covered by, insurance from insurers of recognized financial responsibility in such amounts and covering such risks as is adequate for the conduct of their respective businesses and the value of their respective properties and as is customary for companies engaged in similar businesses. Neither the Company nor any Subsidiary has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not have a Material Adverse Effect, except as described in or contemplated by the Prospectus.

(t) The Company and each Subsidiary that is required to be in compliance is in compliance in all material respects with all presently applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations and published interpretations thereunder (“ERISA”); no “reportable event” (as defined in ERISA) has occurred with respect to any “pension plan” (as defined in ERISA) for which the Company and each Subsidiary would have any liability; the Company and each Subsidiary has not incurred and does not expect to incur liability under (i) Title IV of ERISA with respect to termination of, or withdrawal from, any “pension plan” or (ii) Sections 412 or 4971 of the Internal Revenue Code of 1986, as amended, including the regulations and published interpretations thereunder (the “Code”); and each “pension plan” for which the Company or any Subsidiary would have any liability that is intended to be qualified under Section 401(a) of the Code is so qualified in all material respects and nothing has occurred, whether by action or by failure to act, which would cause the loss of such qualification.

(u) To the Company’s knowledge, there are no affiliations or associations between any member of the NASD and any of the Company’s officers, directors or 5% or greater securityholders, except as set forth in the Registration Statement.

(v) Neither the Company nor any of its affiliates does business with the government of Cuba or with any person or affiliate located in Cuba within the meaning of Section 517.075, Florida Statutes.

(w) The Company has filed a supplemental listing application with the Nasdaq Stock Market, Inc. to list the Shares and the Nasdaq National Market, Inc. has approved the Shares for listing on the Nasdaq National Market, subject to official notice of issuance.

(x) The Company and the Subsidiaries (i) are in material compliance with any and all applicable foreign, federal, state and local laws and regulations relating to the protection

of human health and safety, the environment or hazardous or toxic substances or wastes, pollutants or contaminants (“Environmental Laws”), (ii) have received all permits, licenses or other approvals required of them under applicable Environmental Laws to conduct their respective businesses and (iii) are in compliance with all terms and conditions of any such permit, license or approval, except where such noncompliance with Environmental Laws, failure to receive required permits, licenses or other approvals or failure to comply with the terms and conditions of such permits, licenses or approvals would not, individually or in the aggregate, have a Material Adverse Effect.

(y) The costs or liabilities, if any, associated with Environmental Laws (including, without limitation, any capital or operating expenditures required for clean-up, closure of properties or compliance with Environmental Laws or any permit, license or approval, any related constraints on operating activities and any potential liabilities to third parties) would not, individually or in the aggregate, have a Material Adverse Effect.

(z) No labor dispute with the employees of the Company or any of the Subsidiaries exists, except as described in or contemplated by the Prospectus, or, to the knowledge of the Company, is imminent that might have a Material Adverse Effect; and the Company is not aware of any existing, threatened or imminent labor disturbance by the employees of any of its principal suppliers, manufacturers or contractors that could result in a Material Adverse Effect.

(aa) Except as described in the Prospectus, there are no material off balance sheet transactions, arrangements, obligations (including contingent obligations) or any other relationships with unconsolidated entities or other persons, that may have a material current or future effect on the Company’s financial condition, changes in financial condition, results of operations, liquidity, capital expenditures, capital resources, or significant components of revenues or expenses.

(bb) No relationship, direct or indirect, exists between or among the Company on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company on the other hand, which is required to be described in the Prospectus which is not so described. The Company has not, directly or indirectly, including through any subsidiary, extended or maintained credit, or arranged for the extension of credit, or renewed any extension of credit, in the form of a personal loan to or for any of its directors or executive officers.

(cc) The Company has established and maintains disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), and such disclosure controls and procedures (i) are designed to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to the Company’s principal executive officer and its principal financial officer by others within those entities, particularly during the periods in which the periodic reports required under the Exchange Act are being prepared; (ii) have been evaluated for effectiveness by the Company’s principal executive officer and principal financial officer as of the end of the period covered by the Company’s most recent annual or quarterly report filed with the Commission and the Company has presented in such report the conclusion of the Company’s principal executive officer and its principal financial officer about the effectiveness of such disclosure controls and

procedures as of the end of such period; and (iii) are effective in all material respects to perform the functions for which they were established; in addition, no change in the Company’s internal control over financial reporting occurred during the Company’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

(dd) Based on the most recent evaluation of its disclosure controls and procedures, the Company is not aware of, and the Company has not informed its auditors or its audit committee of (i) any significant deficiency in the design or operation of internal controls over financial reporting which could adversely affect the Company’s ability to record, process, summarize and report financial data or any material weaknesses in internal controls over financial reporting; or (ii) any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal controls over financial reporting. Since the date of the most recent evaluation of such disclosure controls and procedures, there have been no significant changes in internal controls or in other factors that could significantly affect internal controls, including any corrective actions with regard to significant deficiencies and material weaknesses. The principal executive officers (or their equivalents) and principal financial officers (or their equivalents) of the Company have made all certifications required by the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act of 2002 (the “▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act”) and any related rules and regulations promulgated by the Commission, and the statements contained in any such certification are complete and correct, and the Company is otherwise in compliance with all applicable provisions of the ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act that are effective.

(ee) Since the date of the most recent evaluation of such disclosure controls and procedures, there have been no significant changes in internal controls over financial reporting or in other factors that could significantly affect internal controls, including any corrective actions with regard to significant deficiencies and material weaknesses.

(ff) The Company’s Board of Directors has validly appointed an audit committee whose composition satisfies the requirements of Rule 4350(d)(2) of the Rules of the National Association of Securities Dealers, Inc. (the “NASD Rules”) and the Board of Directors and/or the audit committee has adopted a charter that satisfies the requirements of Rule 4350(d)(1) of the NASD Rules. The audit committee has reviewed the adequacy of its charter within the past twelve months. Neither the Board of Directors nor the audit committee has been informed, nor to the Company’s knowledge after due inquiry is any director of the Company aware, of (i) any significant deficiencies or material weaknesses in the design or operation of the Company’s internal controls over financial reporting which are reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information or any material weakness in the company’s internal controls; or (ii) any fraud, whether or not material, that involves management or other employees of the Company who have a significant role in the Company’s internal controls over financial reporting.

(gg) The Company has duly filed on a timely basis with the Commission all reports, registration statements and other documents required by the Act, the Exchange Act, or the rules and regulations of the Commission promulgated pursuant to the Act or the Exchange Act. All of such reports, registration statements and other documents, when they were filed with the Commission, conformed in all material respects to the requirements of the Act, the Exchange

Act or the rules and regulations of the Commission promulgated pursuant to the Act or the Exchange Act, as appropriate. None of such reports, registration statements or other documents contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading.

2. PURCHASE, SALE AND DELIVERY OF THE FIRM SHARES.

(a) On the basis of the representations, warranties and covenants herein contained, and subject to the terms and conditions herein set forth, the Company agrees to issue and sell to the Underwriters and each Underwriter agrees, severally and not jointly, to purchase, at a price of $ per share, the number of Firm Shares set forth opposite the name of each Underwriter in Schedule I hereof, subject to adjustments in accordance with Section 9 hereof.

(b) Payment for the Firm Shares to be sold hereunder is to be made in Federal (same day) funds against delivery of certificates therefor to the Representatives for the several accounts of the Underwriters. Such payment and delivery are to be made through the facilities of The Depository Trust Company, New York, New York at 10:00 a.m., New York time, on the third business day after the date of this Agreement or at such other time and date not later than five business days thereafter as you and the Company shall agree upon, such time and date being herein referred to as the “Closing Date.” (As used herein, “business day” means a day on which the New York Stock Exchange is open for trading and on which banks in New York are open for business and are not permitted by law or executive order to be closed.)

(c) In addition, on the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Company hereby grants an option to the several Underwriters to purchase the Option Shares at the price per share as set forth in the first paragraph of this Section 2. The option granted hereby may be exercised in whole or in part by giving written notice (i) at any time before the Closing Date and (ii) only once thereafter within 30 days after the date of this Agreement, by you, as Representatives of the several Underwriters, to the Company setting forth the number of Option Shares as to which the several Underwriters are exercising the option and the time and date at which such certificates are to be delivered. The time and date at which certificates for Option Shares are to be delivered shall be determined by the Representatives but shall not be earlier than three nor later than 10 full business days after the exercise of such option, nor in any event prior to the Closing Date (such time and date being herein referred to as the “Option Closing Date”). If the date of exercise of the option is three or more days before the Closing Date, the notice of exercise shall set the Closing Date as the Option Closing Date. The number of Option Shares to be purchased by each Underwriter shall be in the same proportion to the total number of Option Shares being purchased as the number of Firm Shares being purchased by such Underwriter bears to the total number of Firm Shares, adjusted by you in such manner as to avoid fractional shares. The option with respect to the Option Shares granted hereunder may be exercised only to cover over-allotments in the sale of the Firm Shares by the Underwriters. You, as Representatives of the several Underwriters, may cancel such option at any time prior to its expiration by giving written notice of such cancellation to the Company. To the extent, if any, that the option is exercised, payment for the Option Shares shall be made on the Option Closing Date in Federal (same day

funds) through the facilities of The Depository Trust Company in New York, New York drawn to the order of the Company.

3. OFFERING BY THE UNDERWRITERS.

It is understood that the several Underwriters are to make a public offering of the Firm Shares as soon as the Representatives deem it advisable to do so. The Firm Shares are to be initially offered to the public at the initial public offering price set forth in the Prospectus. The Representatives may from time to time thereafter change the public offering price and other selling terms. To the extent, if at all, that any Option Shares are purchased pursuant to Section 2 hereof, the Underwriters will offer them to the public of the foregoing terms.

It is further understood that you will act as the Representatives for the Underwriters in the offering and sale of the Shares in accordance with a Master Agreement Among Underwriters entered into by you and the several other Underwriters.

4. COVENANTS OF THE COMPANY.

The Company covenants and agrees with each of the several Underwriters that:

(a) The Company will (A) use its best efforts to cause the Registration Statement to become effective or, if the procedure in Rule 430A of the Rules and Regulations is followed, to prepare and timely file with the Commission under Rule 424(b) of the Rules and Regulations a Prospectus in a form approved by the Representatives containing information previously omitted at the time of effectiveness of the Registration Statement in reliance on Rule 430A of the Rules and Regulations, (B) not file any amendment to the Registration Statement or supplement to the Prospectus of which the Representatives shall not previously have been advised and furnished with a copy or to which the Representatives shall have reasonably objected in writing or which is not in compliance with the Rules and Regulations and (C) file on a timely basis all reports and any definitive proxy or information statements required to be filed by the Company with the Commission subsequent to the date of the Prospectus and prior to the termination of the offering of the Shares by the Underwriters.

(b) The Company will advise the Representatives promptly (A) when the Registration Statement or any post-effective amendment thereto shall have become effective, (B) of receipt of any comments from the Commission, (C) of any request of the Commission for amendment of the Registration Statement or for supplement to the Prospectus or for any additional information, and (D) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or the use of the Prospectus or of the institution of any proceedings for that purpose. The Company will use its best efforts to prevent the issuance of any such stop order preventing or suspending the use of the Prospectus and to obtain as soon as possible the lifting thereof, if issued.

(c) The Company will cooperate with the Representatives in endeavoring to qualify the Shares for sale under the securities laws of such jurisdictions as the Representatives may reasonably have designated in writing and will make such applications, file such documents, and furnish such information as may be reasonably required for that purpose, provided the Company shall not be required to qualify as a foreign corporation or to file a general consent to

service of process in any jurisdiction where it is not now so qualified or required to file such a consent. The Company will, from time to time, prepare and file such statements, reports, and other documents, as are or may be required to continue such qualifications in effect for so long a period as the Representatives may reasonably request for distribution of the Shares.

(d) The Company will deliver to, or upon the order of, the Representatives, from time to time, as many written and electronic copies of any Preliminary Prospectus as the Representatives may reasonably request. The Company will deliver to, or upon the order of, the Representatives during the period when delivery of a Prospectus is required under the Act, as many written and electronic copies of the Prospectus in final form, or as thereafter amended or supplemented, as the Representatives may reasonably request. The Company will deliver to the Representatives at or before the Closing Date, four signed copies of the Registration Statement and all amendments thereto including all exhibits filed therewith, and will deliver to the Representatives such number of copies of the Registration Statement (including such number of copies of the exhibits filed or incorporated by reference therewith that may reasonably be requested) and of all amendments thereto, as the Representatives may reasonably request.

(e) The Company will comply with the Act and the Rules and Regulations, and the Exchange Act, and the rules and regulations of the Commission thereunder, so as to permit the completion of the distribution of the Shares as contemplated in this Agreement and the Prospectus. If during the period in which a prospectus is required by law to be delivered by an Underwriter or dealer, any event shall occur as a result of which, in the judgment of the Company or in the reasonable opinion of the Underwriters, it becomes necessary to amend or supplement the Prospectus in order to make the statements therein, in the light of the circumstances existing at the time the Prospectus is delivered to a purchaser, not misleading, or, if it is necessary at any time to amend or supplement the Prospectus to comply with any law, the Company promptly will prepare and file with the Commission an appropriate amendment to the Registration Statement or supplement to the Prospectus so that the Prospectus as so amended or supplemented will not, in the light of the circumstances when it is so delivered, be misleading, or so that the Prospectus will comply with the law.

(f) The Company will make generally available to its security holders, as soon as it is practicable to do so, but in any event not later than 15 months after the effective date of the Registration Statement, an earnings statement (which need not be audited) in reasonable detail, covering a period of at least 12 consecutive months beginning after the effective date of the Registration Statement, which earnings statement shall satisfy the requirements of Section 11(a) of the Act and Rule 158 of the Rules and Regulations and will advise you in writing when such statement has been so made available.

(g) Prior to the Closing Date, the Company will furnish to the Underwriters, as soon as they have been prepared by or are available to the Company, a copy of any unaudited interim financial statements of the Company for any period subsequent to the period covered by the most recent financial statements appearing in the Registration Statement and the Prospectus.

(h) No offering, sale, short sale or other disposition of any shares of Common Stock of the Company or other securities convertible into or exchangeable or exercisable for, or that represent the right to receive, shares of Common Stock or derivative of Common Stock (or

agreement for such) will be made for a period of 90 days after the date of this Agreement, directly or indirectly, by the Company otherwise than hereunder or with the prior written consent of DBSI, other than pursuant to and in accordance with employee stock option plans existing as of the date of this Agreement.

(i) The Company will use its best efforts to list, subject to notice of issuance, the Shares on the Nasdaq National Market.

(j) The Company has caused each executive officer and director of the Company to furnish to you, on or prior to the date of this agreement, a letter or letters, in form and substance satisfactory to the Underwriters, pursuant to which each such person shall agree not to offer, sell, sell short, pledge or otherwise dispose of any shares of Common Stock of the Company or other capital stock of the Company, or any other securities convertible, exchangeable or exercisable for Common Shares or derivative of Common Shares owned by such person or request the registration for the offer or sale of any of the foregoing (or as to which such person has the right to direct the disposition of) for a period of 90 days after the date of this Agreement, directly or indirectly, except with the prior written consent of DBSI (“Lockup Agreements”).

(k) The Company shall apply the net proceeds of its sale of the Shares as set forth under the caption “Use of Proceeds” in the Prospectus and shall file such reports with the Commission with respect to the sale of the Shares and the application of the proceeds therefrom as may be required in accordance with Rule 463 under the Act.

(l) The Company shall not invest, or otherwise use the proceeds received by the Company from its sale of the Shares in such a manner as would require the Company or any of the Subsidiaries to register as an investment company under the 1940 Act.

(m) The Company will maintain a transfer agent and, if necessary under the jurisdiction of incorporation of the Company, a registrar for the Common Stock.

(n) The Company will not take, directly or indirectly, any action designed to cause or result in, or that has constituted or might reasonably be expected to constitute, the stabilization or manipulation of the price of any securities of the Company.

(o) The Company will furnish to its stockholders as soon as practicable after the end of each fiscal year an annual report (including a balance sheet and statements of income, stockholders’ equity and cash flows of the Company and its consolidated subsidiaries certified by independent public accountants) and, as soon as practicable after the end of each of the first three quarters of each fiscal year (beginning with the fiscal quarter ending after the effective date of the Registration Statement), the Company will make available to its stockholders consolidated summary financial information of the Company and its subsidiaries for such quarter in reasonable detail.

(p) (i) To the extent not publicly filed, to furnish to the Underwriters for a period of two (2) years from the date of this Agreement, copies of any reports or other communications which the Company shall send to its stockholders and (ii) such other information publicly disclosed by the Company as the Underwriters may reasonably request

regarding the Company, in each case as soon as reasonably practicable after such reports, communications, documents or information become available, or are requested by the Underwriters.

(q) If the Company elects to rely upon Rule 462(b), the Company shall file a Rule 462(b) Registration Statement with the Commission in compliance with Rule 462(b) by 10:00 P.M., Washington, D.C. time, on the date of this Agreement, and the Company shall at the time of filing either pay to the Commission the filing fee for the Rule 462(b) Registration Statement or give irrevocable instructions for the payment of such fee pursuant to Rule 111(b) under the Act.

5. COSTS AND EXPENSES.

The Company will pay all costs, expenses and fees incident to the performance of the obligations of the Company under this Agreement, including, without limiting the generality of the foregoing, the following: fees, disbursements and expenses of accountants, disbursements and expenses of the Company; the fees, disbursements and expenses of counsel for the Company; the cost of printing and delivering to, or as requested by, the Underwriters copies of the Registration Statement, Preliminary Prospectuses, the Prospectus, this Agreement, the Underwriters’ Selling Memorandum, the Underwriters’ Invitation Letter, any other agreement among the Underwriters, the Blue Sky Survey and any supplements or amendments thereto; the filing fees of the Commission; the filing fees and expenses (including legal fees and disbursements of counsel for the Underwriters) incident to securing any required review by the NASD of the terms of the sale of the Shares; all fees and expenses including the Listing Fee, associated with listing the Shares on the Nasdaq National Market; the costs of preparing stock certificates and the expenses, including the fees and disbursements of counsel for the Underwriters, incurred in connection with the qualification of the Shares under State securities or Blue Sky laws. The Company shall not, however, be required to pay for any of the Underwriters expenses (other than those related to qualification under NASD regulation and State securities or Blue Sky laws) except that, if this Agreement shall not be consummated because the conditions in Section 6 hereof are not satisfied, or because this Agreement is terminated by the Representatives pursuant to Section 11 hereof, or by reason of any failure, refusal or inability on the part of the Company to perform any undertaking or satisfy any condition of this Agreement or to comply with any of the terms hereof on its part to be performed, unless such failure, refusal or inability is due primarily to the default or omission of any Underwriter, the Company shall reimburse the several Underwriters for reasonable out-of-pocket expenses, including fees and disbursements of counsel, reasonably incurred in connection with preparing the Registration Statement, investigating, marketing and proposing to market the Shares or in contemplation of performing their obligations hereunder; but the Company shall not in any event be liable to any of the several Underwriters for damages on account of loss of anticipated profits from the sale by them of the Shares.

6. CONDITIONS OF OBLIGATIONS OF THE UNDERWRITERS.

The several obligations of the Underwriters to purchase the Firm Shares on the Closing Date and the Option Shares, if any, on the Option Closing Date are subject to the accuracy of the Company’s representations and warranties herein as of the Closing Date or the

Option Closing Date, as the case may be, to the accuracy of the statements of Company officers made pursuant to the provisions hereof, to the performance by the Company of its covenants and obligations hereunder and to the following additional conditions precedent:

(a) The Registration Statement and all post-effective amendments thereto shall have become effective and any and all filings required by Rule 424 and Rule 430A of the Act shall have been made within the applicable time period prescribed by, and in compliance with, the Rules and Regulations, and any request of the Commission for additional information (to be included in the Registration Statement or otherwise) shall have been disclosed to the Representatives and complied with to their reasonable satisfaction. If the Company has elected to rely on Rule 462(b), the Rule 462(b) Registration Statement shall have become effective by 10:00 p.m., Washington, D.C. time, on the date of this Agreement. No stop order suspending the effectiveness of the Registration Statement or any part thereof, as amended from time to time, shall have been issued and no proceedings for that purpose shall have been taken or, to the knowledge of the Company, shall be contemplated or threatened by the Commission, all requests for additional information on the part of the Commission shall have been complied with to the Representatives’ reasonable satisfaction and no injunction, restraining order or order of any nature by a Federal or state court of competent jurisdiction shall have been issued as of the Closing Date which would prevent the issuance of the Shares.

(b) The Representatives shall have received on the Closing Date or the Option Closing Date, as the case may be, the opinion of Howard, Rice, Nemerovski, Canady, ▇▇▇▇ & ▇▇▇▇▇▇, A Professional Corporation (“▇▇▇▇▇▇, Rice”), counsel for the Company, dated the Closing Date or the Option Closing Date, as the case may be, addressed to the Underwriters (and stating that it may be relied upon by counsel to the Underwriters) to the effect that:

(i) The Company has been duly incorporated and is a validly existing corporation in good standing under the laws of the State of Delaware, and has the corporate power and authority to own or lease its properties and conduct its business as described in the Registration Statement; each of the Subsidiaries that is incorporated or formed in a state of the United States has been duly incorporated (in the case of a corporation) or duly formed (in the case of a limited liability company) in the State of Delaware (the “Delaware Subsidiaries”) and is validly existing as a corporation or a limited liability company in good standing under the laws of the State of Delaware, and has the corporate or limited liability company power and authority to own or lease its properties and conduct its business as described in the Registration Statement; the Company is duly qualified to transact business as a foreign corporation in California, Hawaii, Indiana, Missouri, New Hampshire, Oklahoma, Oregon, Texas, Washington and Wisconsin. Palm Trademark Holding Company is duly qualified to transact business as a foreign corporation in California, and to such counsel’s knowledge, PalmSource Holding Company is not required to be qualified to transact business as a foreign corporation in California. The outstanding shares of capital stock (in the case of a corporation) or interests (in the case of a limited liability company) of each of the Delaware Subsidiaries have been duly authorized and validly issued and are fully paid and non-assessable and are owned of record by the Company, except that the interests in Palm Trademark Holding Company LLC are owned 55% by the Company and 45% by palmOne, Inc.

(ii) The Company has authorized and outstanding capital stock as set forth in the Prospectus as of the date stated therein and the Company’s authorized capitalization

as set forth in the Prospectus has not changed since the date therein; the outstanding shares of the Company’s Common Stock have been duly authorized and validly issued and are fully paid and non-assessable; all of the Shares conform as to legal matters to the description thereof contained in the Prospectus under the caption “Description of Capital Stock”; the form of certificate used to evidence the Shares complies in all material respects with the applicable provisions of the Delaware General Corporation Law and with any applicable requirements of the certificate of incorporation and by-laws of the Company; the Shares to be sold by the Company pursuant to this Agreement have been duly authorized and will be validly issued, fully paid and non-assessable when issued, sold and delivered in the manner and for the consideration stated in this Agreement; and no preemptive rights of stockholders under the Delaware General Corporation Law, the certificate of incorporation or by-laws of the Company, or under any of the agreements listed as an exhibit to the Registration Statement (the “Material Contracts”), exist with respect to any of the Shares or the issue or sale thereof.

(iii) Except as described in or contemplated by the Prospectus, to the knowledge of such counsel, there are no outstanding securities of the Company convertible or exchangeable into or evidencing the right to purchase or subscribe for any shares of capital stock of the Company and there are no outstanding or authorized options, warrants or rights of any character obligating the Company to issue any shares of its capital stock or any securities convertible or exchangeable into or evidencing the right to purchase or subscribe for any shares of such stock; and except as described in the Prospectus, no holder of any securities of the Company or any other person has the right under any of the Material Contracts which has not been satisfied or effectively waived, to cause the Company to sell or otherwise issue to them, or to permit them to underwrite the sale of, any of the Shares or the right to have any shares of Common Stock or other securities of the Company included in the Registration Statement or the right, as a result of the filing of the Registration Statement, to require registration under the Act of any shares of Common Stock or other securities of the Company.

(iv) The Registration Statement has become effective under the Act and, to the best knowledge of such counsel, no stop order proceedings with respect thereto have been instituted or are pending or threatened under the Act.

(v) At the time it became effective, and at the Closing Date or Option Closing Date (as the case may be), the Registration Statement, the Prospectus and each amendment or supplement thereto, complied or comply (as the case may be) as to form in all material respects with the requirements of the Act and Rules and Regulations (except that such counsel need express no opinion as to the financial statements, schedules and notes and other financial and statistical information included therein).

(vi) The statements under the captions “Description of Capital Stock” and “Shares Eligible for Future Sale” in the Prospectus, insofar as such statements constitute a summary of documents referred to therein, legal conclusions or matters of law, have been reviewed by such counsel and are correct in all material respects. In addition, the descriptions of the agreements under the captions “Management—Employment and Change of Control Agreements” and “The Separation and Distribution” in the Prospectus do not materially misstate the information contained in such agreements.

(vii) To such counsel’s knowledge, there are no contracts or documents required under the Act or the Rules and Regulations to be filed or incorporated by reference as exhibits to the Registration Statement or described in the Registration Statement or the Prospectus which have not been so filed or incorporated by reference as exhibits or described as required, and the contracts and documents described therein are, in all material respects accurately summarized to the extent required by the Act and the Rules and Regulations.

(viii) To such counsel’s knowledge, there are no material legal or governmental actions, suits, claims or proceedings pending or threatened against the Company or any of the Subsidiaries except as set forth in the Prospectus.

(ix) The execution and delivery of this Agreement by the Company do not, and the performance by the Company of its obligations under this Agreement will not (A) violate the certificate of incorporation or by-laws of the Company, (B) violate, breach or result in a default under any existing obligation of or restriction on the Company under any Material Contracts, (C) breach or otherwise violate any existing obligation of, or restriction on, the Company under any order, judgment or decree of any California or federal court or governmental authority binding on the Company and identified in a certificate delivered to such counsel by certain officers of the Company in connection with the opinion, or (D) violate the current Delaware General Corporation Law, or any current California or federal statute, rule or regulation that in such counsel’s experience is normally applicable to the Company or to the transactions of the type contemplated by this Agreement, except such counsel need express no opinion regarding (x) the anti-fraud provisions of the federal securities laws or (y) broker-dealer, state securities or Blue-Sky laws, except with respect to (B), (C) and (D) where such violation, breach or default would not have a material adverse effect on the earnings, business, properties, assets, operations or financial condition of the Company and its Subsidiaries taken as a whole.

(x) This Agreement has been duly authorized, executed and delivered by the Company.

(xi) No approval, consent, order, authorization, designation, declaration or filing by or with any regulatory, administrative or other governmental body by the Company is necessary in connection with the execution and delivery of this Agreement by the Company and the consummation of the transactions herein contemplated (other than as may be required by the NASD or as required by broker-dealer, state securities or Blue Sky laws, as to which such counsel need express no opinion) except such as have been obtained or made.

(xii) The Company is not, and will not become, as a result of the consummation of the transactions contemplated by this Agreement, and application of the net proceeds therefrom as described in the Prospectus, required to register as an investment company under the ▇▇▇▇ ▇▇▇.

(xiii) The Shares have been approved for additional listing on the Nasdaq National Market.

In addition to the matters set forth above, the opinion from ▇▇▇▇▇▇, ▇▇▇▇ shall also include a statement to the effect that nothing has come to the attention of such counsel

which causes them to believe that (i) the Registration Statement or any amendment thereto (other than financial statements, schedules and notes and other financial and statistical information included therein or derived therefrom, as to which such counsel expresses no belief), at the time it became effective under the Act (including the information deemed to be a part of the Registration Statement at the time it became effective pursuant to Rule 430A under the Act) and as of the Closing Date or the Option Closing Date, as the case may be, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, and (ii) the Prospectus, or any supplement thereto (other than financial statements, schedules and notes and other financial and statistical information included therein or derived therefrom, as to which such counsel expresses no belief), on the date it was filed pursuant to the Rules and Regulations and as of the Closing Date or the Option Closing Date, as the case may be, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. With respect to such statement, ▇▇▇▇▇▇, Rice may state that their belief is based upon the procedures set forth therein, but is without independent check and verification.

(c) The Representatives shall have received on the Closing Date or the Option Closing Date, as the case may be, the opinions of ▇▇▇▇▇ & ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ & ▇▇▇▇▇▇ LLP, ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇ LLP, ▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇ & Hao LLP, ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇ & Zafman LLP and ▇▇▇▇▇▇▇▇ & Sunstein LLP, each as patent counsel for the Company, dated the Closing Date or the Option Closing Date, as the case may be, addressed to the Underwriters (and stating that it may be relied upon by counsel to the Underwriters) to substantially the effect that:

(i) As to the statements under the captions “Risk Factors—Third parties have claimed and may claim in the future that our products infringe their intellectual property; if these claims are successful, we could suffer significant litigation or licensing expenses or be prevented from licensing Palm OS to our licensees who sell Palm Powered products,” “Risk Factors—If third parties infringe our intellectual property or if we are unable to secure and protect our intellectual property, we may expend significant resources enforcing our rights or suffer competitive injury,” “Risk Factors—We currently intend to expand our international presence in countries that may not protect our intellectual property rights to the same extent as the laws of the United States, which may increase the risk of infringement of our intellectual property,” “Risk Factors—We currently intend to establish engineering resources or to outsource engineering services or both outside of the United States in countries that may not protect our intellectual property and confidential information or the intellectual property or confidential information of our licensees or partners to the same extent as the laws of the United States. This may increase the risk of misappropriation or infringement of our intellectual property or the intellectual property or confidential information of our licensees or partners,” “Risk Factors—Establishing our new Palm Powered ingredient brand has required the creation or modification of currently existing “Palm” or “palmOne” brand trademarks and trade names; protection and maintenance of these trademarks and trade names may be difficult and costly in the future, which may harm our business, results of operations and financial position,” “The Separation and Distribution—Amended and Restated Software License Agreement,” “The Separation and Distribution—SDIO License Agreement,” “The Separation and Distribution—

Development Agreement,” “The Separation and Distribution—Master Technology Ownership and License Agreement,” “The Separation and Distribution—Master Patent Ownership and License Agreement,” “The Separation and Distribution—Trademark Agreements,” “The Separation and Distribution—▇▇▇▇▇▇ Software License and Services Agreement,” and “Business—Intellectual Property,” nothing has come to the attention of such counsel which caused them to believe that the above-mentioned sections of the Registration Statement and any amendment or supplement thereto made available and reviewed by such counsel, at the time the Registration Statement became effective and at all times subsequent thereto up to and on the Closing Date and on any Option Closing Date, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading; and to such counsel’s knowledge, insofar as such statements relate to the Patents (as defined below), the Applications (as defined below) or any legal matters, documents and proceedings relating thereto, fairly present the information called for with respect to such legal matters, documents and proceedings and fairly summarizing the matters referred to therein.

(ii) Such counsel knows of no material action, suit, claim or proceeding relating to patents, patent rights or licenses, trademarks or trademark rights, copyrights, collaborative research, licenses or royalty arrangements or agreements or trade secrets, know-how or proprietary techniques, including processes and substances, owned by or affecting the business or operations of the Company which are pending or threatened against the Company or any of its officers or directors.

(iii) The Company is listed in the records of the United States Patent and Trademark Office as the holder of record of the patents listed on a schedule to such opinion (the “Patents”) and each of the applications listed on a schedule to such opinion (the “Applications”). To the knowledge of such counsel, there are no claims of third parties to any ownership interest or lien with respect to any of the Patents or Applications. Such counsel is not aware of any material defect in form in the preparation or filing of the Applications on behalf of the Company. To the knowledge of such counsel, the Applications are being pursued by the Company. To the knowledge of such counsel, the Company owns as its sole property the Patents and pending Applications.

(iv) The Company is listed in the records of the appropriate foreign offices as the sole holder of record of the foreign patents listed on a schedule to such opinion (the “Foreign Patents”) and each of the applications listed on a schedule to such opinion (the “Foreign Applications”). Such counsel knows of no claims of third parties to any ownership interest or lien with respect to the Foreign Patents or Foreign Applications. Such counsel is not aware of any material defect of form in the preparation or filing of the Foreign Applications on behalf of the Company. To the knowledge of such counsel, the Foreign Applications are being pursued by the Company. To the knowledge of such counsel, the Company owns as its sole property the Foreign Patents and pending Foreign Applications.

(v) Such counsel knows of no reason why the Patents or Foreign Patents are not valid as issued. Such counsel has no knowledge of any reason why any patent to be issued as a result of any Application or Foreign Application would not be valid or would not afford the Company useful patent protection with respect thereto.

(d) The Representatives shall have received from O’Melveny & ▇▇▇▇▇ LLP, counsel for the Underwriters, an opinion dated the Closing Date or the Option Closing Date, as the case may be, substantially to the effect specified in subparagraphs (iv) and (x) of Paragraph (b) of this Section 6, that the Shares to be sold by the Company pursuant to this Agreement have been duly authorized and will be validly issued, fully paid and non-assessable when issued, sold and delivered in the manner and for the consideration stated in this Agreement, all of the Shares conform as to legal matters to the description thereof contained in the Prospectus under the caption “Description of Capital Stock” and that the Company is a validly existing corporation under the laws of the State of Delaware. In rendering such opinion, O’Melveny & ▇▇▇▇▇ LLP may rely as to all matters governed other than by the laws of the State of California, the current Delaware General Corporation Law or Federal laws on the opinions of counsel referred to in Paragraph (b) and Paragraph (c) of this Section 6. In addition to the matters set forth above, such opinion shall also include a statement to the effect that nothing has come to the attention of such counsel which leads them to believe that (i) the Registration Statement, or any amendment thereto (other than financial statements, schedules and notes and other financial and statistical information included therein or derived therefrom, as to which such counsel expresses no opinion), as of the time it became effective under the Act (including the information deemed to be a part of the Registration Statement at the time it became effective pursuant to Rule 430A under the Act) as of the Closing Date or the Option Closing Date, as the case may be, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, and (ii) the Prospectus, or any supplement thereto (other than financial statements, schedules and notes and other financial and statistical information included therein or derived therefrom, as to which such counsel expresses no opinion), on the date it was filed pursuant to the Rules and Regulations and as of the Closing Date or the Option Closing Date, as the case may be, contained or contains an untrue statement of a material fact or omitted or omits to state a material fact, necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. With respect to such statement, O’Melveny & ▇▇▇▇▇ LLP may state that their belief is based upon the procedures set forth therein, but is without independent check and verification.

(e) The Representatives shall have received at or prior to the Closing Date from O’Melveny & ▇▇▇▇▇ LLP, a memorandum or summary, in form and substance satisfactory to the Representatives, with respect to the qualification for offering and sale by the Underwriters of the Shares under the State securities or Blue Sky laws of such jurisdictions as the Representatives may reasonably have designated to the Company.

(f) The Representatives shall have received, on each of the date hereof, the Closing Date and, if applicable, the Option Closing Date, a comfort letter dated the date hereof, the Closing Date or the Option Closing Date, as the case may be, in form and substance satisfactory to the Representatives, from PricewaterhouseCoopers LLP confirming that they are independent public accountants within the meaning of the Act and the applicable published Rules and Regulations thereunder and stating that in their opinion the financial statements and schedules examined by them and included in the Registration Statement comply in form in all material respects with the applicable accounting requirements of the Act and the related published Rules and Regulations; and containing such other statements and information as is ordinarily included in accountants’ “comfort letters” to Underwriters with respect to the financial

statements and certain financial and statistical information contained in the Registration Statement and Prospectus.

(g) The Representatives shall have received on the Closing Date and, if applicable, the Option Closing Date, as the case may be, a certificate or certificates of the Chief Executive Officer and the Chief Financial Officer of the Company stating that, as of the Closing Date or the Option Closing Date, as the case may be, to the best of their knowledge after due inquiry:

(i) The Registration Statement has become effective under the Act and no stop order suspending the effectiveness of the Registration Statement has been issued, and no proceedings for such purpose have been taken or are, to his knowledge, contemplated or threatened by the Commission;

(ii) The representations and warranties of the Company contained in Section 1 hereof are true and correct;

(iii) All filings required to have been made pursuant to Rules 424 or 430A under the Act have been made as and when required by such rules;

(iv) He or she has carefully examined the Registration Statement and the Prospectus and, in his or her opinion, as of the effective date of the Registration Statement, the statements contained in the Registration Statement were true and correct, and such Registration Statement and Prospectus did not omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading, and since the effective date of the Registration Statement, no event has occurred which should have been set forth in a supplement to or an amendment of the Prospectus which has not been so set forth in such supplement or amendment; and

(v) Since the respective dates as of which information is given in the Registration Statement and Prospectus, there has been no Material Adverse Effect, nor any change, development or event that is reasonably likely to result in a Material Adverse Effect, whether or not arising in the ordinary course of business.

(h) The Company shall have furnished to the Representatives such further certificates and documents confirming the representations and warranties, covenants and conditions contained herein and related matters as the Representatives may reasonably have requested.

(i) The Firm Shares and Option Shares, if any, have been approved for designation upon notice of issuance on the Nasdaq National Market.

(j) The Lockup Agreements described in Section 4(j) are in full force and effect.

The opinions and certificates mentioned in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in all material respects satisfactory to the Representatives and to O’Melveny & ▇▇▇▇▇ LLP, counsel for the Underwriters.

If any of the conditions hereinabove provided for in this Section 6 shall not have been fulfilled when and as required by this Agreement to be fulfilled, the obligations of the Underwriters hereunder may be terminated by the Representatives by notifying the Company of such termination in writing or by telegram at or prior to the Closing Date or the Option Closing Date, as the case may be.

In such event, the Company and the Underwriters shall not be under any obligation to each other (except to the extent provided in Sections 5 and 8 hereof).

7. CONDITIONS OF THE OBLIGATIONS OF THE COMPANY.

The obligations of the Company to sell and deliver the portion of the Shares required to be delivered as and when specified in this Agreement are subject to the conditions that at the Closing Date or the Option Closing Date, as the case may be, no stop order suspending the effectiveness of the Registration Statement shall have been issued and in effect or proceedings therefor initiated or threatened.

8. INDEMNIFICATION.

(a) The Company agrees:

(i) to indemnify and hold harmless each Underwriter and each person, if any, who controls any Underwriter within the meaning of either Section 15 of the Act or Section 20 of the Exchange Act, against any losses, claims, damages or liabilities to which such Underwriter or any such controlling person may become subject under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions or proceedings in respect thereof) arise out of or are based upon (i) any untrue statement or alleged untrue statement of any material fact contained in the Registration Statement, any Preliminary Prospectus, the Prospectus or any amendment or supplement thereto, (ii) the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances under which they were made or (iii) any act or failure to act, or any alleged act or failure to act by any Underwriter in connection with, or relating in any manner to, the Shares or the offering contemplated hereby, and which is included as part of or referred to in any loss, claim, damage, liability or action arising out of or based upon matters covered by clause (i) or (ii) above (provided, that the Company shall not be liable under this clause (iii) to the extent that it is determined in a final judgment by a court of competent jurisdiction that such loss, claim, damage, liability or action resulted directly from any such acts or failures to act undertaken or omitted to be taken by such Underwriter through its gross negligence or willful misconduct); provided, however, that the Company will not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement, or omission or alleged omission made in the Registration Statement, any Preliminary Prospectus, the Prospectus, or such amendment or supplement, in reliance upon and in conformity with written information furnished to the Company by or through the Representatives specifically for use in the preparation thereof. The Company also agrees to indemnify and hold harmless DBSI and each person, if any, who controls DBSI within the meaning of either Section 15 of the Act, or Section 20 of the Exchange Act, from and against any and all losses, claims, damages, liabilities and judgments incurred as a

result of DBSI’s participation as a “qualified independent underwriter” within the meaning of Rule 2720 of the National Association of Securities Dealers’ Conduct Rules in connection with the offering of the Shares, except for any losses, claims, damages, liabilities and judgments resulting from DBSI’s or such controlling person’s willful misconduct; and

(ii) to reimburse each Underwriter and each such controlling person upon demand for any legal or other out-of-pocket expenses reasonably incurred by such Underwriter or such controlling person in connection with investigating or defending any such loss, claim, damage or liability, action or proceeding or in responding to a subpoena or governmental inquiry related to the offering of the Shares, whether or not such Underwriter or controlling person is a party to any action or proceeding. In the event that it is finally judicially determined that the Underwriters were not entitled to receive payments for legal and other expenses pursuant to this subparagraph, the Underwriters will promptly return all sums that had been advanced pursuant hereto.

(b) Each Underwriter severally and not jointly will indemnify and hold harmless the Company, each of its directors, each of its officers who have signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the Act, against any losses, claims, damages or liabilities to which the Company or any such director, officer, or controlling person may become subject under the Act or otherwise, insofar as such losses, claims, damages or liabilities (or actions or proceedings in respect thereof) arise out of or are based upon (i) any untrue statement or alleged untrue statement of any material fact contained in the Registration Statement, any Preliminary Prospectus, the Prospectus or any amendment or supplement thereto, or (ii) the omission or the alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances under which they were made; and will reimburse any legal or other expenses reasonably incurred by the Company or any such director, officer, or controlling person in connection with investigating or defending any such loss, claim, damage, liability, action or proceeding; provided, however, that each Underwriter will be liable in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission has been made in the Registration Statement, any Preliminary Prospectus, the Prospectus or such amendment or supplement, in reliance upon and in conformity with written information furnished to the Company by or through the Representatives specifically for use in the preparation thereof. This indemnity agreement will be in addition to any liability which such Underwriter may otherwise have.

(c) In case any proceeding (including any governmental investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to this Section 8, such person (the “indemnified party”) shall promptly notify the person against whom such indemnity may be sought (the “indemnifying party”) in writing. No indemnification provided for in Section 8(a) or (b) shall be available to any party who shall fail to give notice as provided in this Section 8(c) if the party to whom notice was not given was unaware of the proceeding to which such notice would have related and was materially prejudiced by the failure to give such notice, but the failure to give such notice shall not relieve the indemnifying party or parties from any liability which it or they may have to the indemnified party for contribution or otherwise than on account of the provisions of Section 8(a) or (b). In case any such proceeding

shall be brought against any indemnified party and it shall notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate therein and, to the extent that it shall wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel satisfactory to such indemnified party and shall pay as incurred the fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party shall have the right to retain its own counsel at its own expense. Notwithstanding the foregoing, the indemnifying party shall pay as incurred (or within 30 days of presentation) the fees and expenses of the counsel retained by the indemnified party in the event (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel, (ii) the named parties to any such proceeding (including any impleaded parties) include both the indemnifying party and the indemnified party and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them or (iii) the indemnifying party shall have failed to assume the defense and employ counsel acceptable to the indemnified party within a reasonable period of time after notice of commencement of the action. It is understood that the indemnifying party shall not, in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the reasonable fees and expenses of more than one separate firm for all such indemnified parties. Such firm shall be designated in writing by the Representatives in the case of parties indemnified pursuant to Section 8(a) or (b) and by the Company in the case of parties indemnified pursuant to Section 8(b). The indemnifying party shall not be liable for any settlement of any proceeding effected without its written consent but if settled with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified party from and against any loss or liability by reason of such settlement or judgment. In addition, the indemnifying party will not, without the prior written consent of the indemnified party, settle or compromise or consent to the entry of any judgment in any pending or threatened claim, action or proceeding of which indemnification may be sought hereunder (whether or not any indemnified party is an actual or potential party to such claim, action or proceeding) unless such settlement, compromise or consent includes an unconditional release of each indemnified party from all liability arising out of such claim, action or proceeding. Notwithstanding anything contained herein to the contrary, if indemnity may be sought pursuant to Section 8(a) hereof in respect of such action or proceeding, then in addition to such separate firm for the indemnified parties, the indemnifying party shall be liable for the reasonable fees and expenses of not more than one separate firm (in addition to any local counsel) for DBSI in its capacity as a “qualified independent underwriter” and all persons, if any, who control DBSI within the meaning of either Section 15 of the Act or Section 20 of the Exchange Act.

(d) To the extent the indemnification provided for in this Section 8 is unavailable to or insufficient to hold harmless an indemnified party under Section 8(a) or (b) above in respect of any losses, claims, damages or liabilities (or actions or proceedings in respect thereof) referred to therein, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (or actions or proceedings in respect thereof) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other from the offering of the Shares. If, however, the allocation provided by the immediately preceding sentence is not permitted by applicable law then each indemnifying party shall contribute to such amount paid or payable by such indemnified party in such proportion as is

appropriate to reflect not only such relative benefits but also the relative fault of the Company on the one hand and the Underwriters on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities (or actions or proceedings in respect thereof), as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other shall be deemed to be in the same proportion as the total net proceeds from the offering (before deducting expenses) received by the Company bear to the total underwriting discounts and commissions received by the Underwriters, in each case as set forth in the table on the cover page of the Prospectus. The relative fault shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company on the one hand or the Underwriters on the other and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

The Company and the Underwriters agree that it would not be just and equitable if contributions pursuant to this Section 8(d) were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 8(d). The amount paid or payable by an indemnified party as a result of the losses, claims, damages or liabilities (or actions or proceedings in respect thereof) referred to above in this Section 8(d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this subsection (d), (i) no Underwriter shall be required to contribute any amount in excess of the underwriting discounts and commissions applicable to the Shares purchased by such Underwriter and (ii) no person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations in this Section 8(d) to contribute are several in proportion to their respective underwriting obligations and not joint.

(e) In any proceeding relating to the Registration Statement, any Preliminary Prospectus, the Prospectus or any supplement or amendment thereto, each party against whom contribution may be sought under this Section 8 hereby consents to the jurisdiction of any court having jurisdiction over any other contributing party, agrees that process issuing from such court may be served upon it by any other contributing party and consents to the service of such process and agrees that any other contributing party may join it as an additional defendant in any such proceeding in which such other contributing party is a party.

(f) Any losses, claims, damages, liabilities or expenses for which an indemnified party is entitled to indemnification or contribution under this Section 8 shall be paid by the indemnifying party to the indemnified party as such losses, claims, damages, liabilities or expenses are incurred. The indemnity and contribution agreements contained in this Section 8 and the representations and warranties of the Company set forth in this Agreement shall remain operative and in full force and effect, regardless of (i) any investigation made by or on behalf of any Underwriter or any person controlling any Underwriter, the Company, its directors or officers or any persons controlling the Company, (ii) acceptance of any Shares and payment therefor hereunder, and (iii) any termination of this Agreement. A successor to any Underwriter,

or any person controlling any Underwriter, or to the Company, its directors or officers, or any person controlling the Company, shall be entitled to the benefits of the indemnity, contribution and reimbursement agreements contained in this Section 8.

9. DEFAULT BY UNDERWRITERS.

If on the Closing Date or the Option Closing Date, as the case may be, any Underwriter shall fail to purchase and pay for the portion of the Shares which such Underwriter has agreed to purchase and pay for on such date (otherwise than by reason of any default on the part of the Company), you, as Representatives of the Underwriters, shall use your reasonable efforts to procure within 36 hours thereafter one or more of the other Underwriters, or any others, to purchase from the Company such amounts as may be agreed upon and upon the terms set forth herein, the Shares which the defaulting Underwriter or Underwriters failed to purchase. If during such 36 hours you, as such Representatives, shall not have procured such other Underwriters, or any others, to purchase the Shares agreed to be purchased by the defaulting Underwriter or Underwriters, then (a) if the aggregate number of shares with respect to which such default shall occur does not exceed 10% of the Shares to be purchased on the Closing Date or the Option Closing date, as the case may be, the other Underwriters shall be obligated, severally, in proportion to the respective numbers of Shares which they are obligated to purchase hereunder, to purchase the Shares which such defaulting Underwriter or Underwriters failed to purchase, or (b) if the aggregate number of shares of Shares with respect to which such default shall occur exceeds 10% of the Shares to be purchased on the Closing Date or the Option Closing Date, as the case may be, the Company or you as the Representatives of the Underwriters will have the right, by written notice given within the next 36-hour period to the parties to this Agreement, to terminate this Agreement without liability on the part of the non-defaulting Underwriters or of the Company except to the extent provided in Sections 5 and 8 hereof. In the event of a default by any Underwriter or Underwriters, as set forth in this Section 9, the Closing Date or Option Closing Date, as the case may be, may be postponed for such period, not exceeding seven days, as you, as Representatives, may determine in order that the required changes in the Registration Statement or in the Prospectus or in any other documents or arrangements may be effected. The term “Underwriter” includes any person substituted for a defaulting Underwriter. Any action taken under this Section 9 shall not relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under this Agreement.

10. NOTICES.

All communications hereunder shall be in writing and, except as otherwise provided herein, will be mailed, delivered, telecopied or telegraphed and confirmed as follows: if to the Underwriters, to Deutsche Bank Securities Inc., ▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇; Attention: Syndicate Manager, with a copy to Deutsche Bank Securities Inc., ▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇, Attention: General Counsel; if to the Company, to the address of the Company set forth in the Registration Statement, Attention: Chief Administrative Offier, with a copy to Howard, Rice, Nemerovski, Canady, ▇▇▇▇ & ▇▇▇▇▇▇, A Professional Corporation, Three ▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇^▇▇ ▇▇▇▇▇, ▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇, Attention: ▇▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇, Esq.

11. TERMINATION.

This Agreement may be terminated by you by notice to the Company

(a) at any time prior to the Closing Date or any Option Closing Date (if different from the Closing Date and then only as to Option Shares) if any of the following has occurred: (i) since the respective dates as of which information is given in the Registration Statement and the Prospectus, any material adverse change or any development involving a prospective material adverse change in or affecting the earnings, business, management, properties, assets, rights, operations, condition (financial or otherwise) or prospects of the Company and its Subsidiaries taken as a whole, whether or not arising in the ordinary course of business, (ii) any outbreak or escalation of hostilities or declaration of war or national emergency or other national or international calamity or crisis or change in economic or political conditions if the effect of such outbreak, escalation, declaration, emergency, calamity, crisis or change on the financial markets of the United States would, in your reasonable judgment, make it impracticable or inadvisable to market the Shares or to enforce contracts for the sale of the Shares, or (iii) suspension of trading in securities generally on the New York Stock Exchange, the American Stock Exchange or the Nasdaq National Market or limitation on prices (other than limitations on hours or numbers of days of trading) for securities on either such Exchange, (iv) the enactment, publication, decree or other promulgation of any statute, regulation, rule or order of any court or other governmental authority which in your opinion materially and adversely affects or may materially and adversely affect the business or operations of the Company, (v) the declaration of a banking moratorium by United States or New York State authorities, (vi) any downgrading, or placement on any watch list for possible downgrading, in the rating of any of the Company’s debt securities by any “nationally recognized statistical rating organization” (as defined for purposes of Rule 436(g) under the Exchange Act); (vii) the suspension of trading of the Company’s common stock by the Nasdaq National Market, the Commission, or any other governmental authority or, (viii) the taking of any action by any governmental body or agency in respect of its monetary or fiscal affairs which in your reasonable opinion has a material adverse effect on the securities markets in the United States; or

(b) as provided in Sections 6 and 9 of this Agreement.

12. SUCCESSORS.

This Agreement has been and is made solely for the benefit of the Underwriters and the Company and their respective successors, executors, administrators, and assigns, and the officers, directors and controlling persons referred to herein, and no other person will have any right or obligation hereunder. No purchaser of any of the Shares from any Underwriter shall be deemed a successor or assign merely because of such purchase.

13. INFORMATION PROVIDED BY UNDERWRITERS.

The Company and the Underwriters acknowledge and agree that the only information furnished or to be furnished by any Underwriter to the Company for inclusion in any Prospectus or the Registration Statement consists of the information set forth in the third, ninth, and tenth through sixteenth paragraphs under the caption “Underwriting” in the Prospectus.

14. MISCELLANEOUS.

The reimbursement, indemnification and contribution agreements contained in this Agreement and the representations, warranties and covenants in this Agreement shall remain in full force and effect regardless of (a) any termination of this Agreement, (b) any investigation made by or on behalf of any Underwriter or controlling person thereof, or by or on behalf of the Company or its directors or officers and (c) delivery of and payment for the Shares under this Agreement.

This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

This Agreement shall be governed by, and construed in accordance with, the law of the State of New York without regard to the conflict of laws provisions thereof.

If the foregoing is in accordance with your understanding of our agreement, please sign and return to us the enclosed duplicates hereof, whereupon it will become a binding agreement among the Company and the several Underwriters in accordance with its terms.

Any person executing and delivering this Agreement as Attorney-in-Fact for a Selling Shareholder represents by so doing that he has been duly appointed as Attorney-in-Fact by such Selling Shareholder pursuant to a validly existing and binding Power of Attorney which authorizes such Attorney-in-Fact to take such action.


Very truly yours,

PALMSOURCE, INC.

By
		Name: Title:

The foregoing Underwriting Agreement

is hereby confirmed and accepted as

of the date first above written.

DEUTSCHE BANK SECURITIES INC.

▇▇▇▇▇▇▇ & COMPANY, INC.

FIRST ALBANY CAPITAL INC.

As Representatives of the several

Underwriters listed on Schedule I

By: Deutsche Bank Securities Inc.



By:
		Authorized Officer



By:
		Authorized Officer

By: ▇▇▇▇▇▇▇ & Company, Inc.



By:
		Authorized Officer



By:
		Authorized Officer

By: First Albany Capital Inc.



By:
		Authorized Officer



By:
		Authorized Officer

EXHIBIT A

COMPANY SUBSIDIARIES

Subsidiaries of PalmSource, Inc.:

Palm Trademark Holding Company, LLC, a Delaware limited liability company (55%

owned by PalmSource, Inc., 45% owned by palmOne, Inc.)

PalmSource Europe SARL (France) (100% owned by PalmSource, Inc.)

PalmSource Holding Company, a Delaware corporation (100% owned by PalmSource,

Inc.)

Subsidiary of PalmSource Holding Company:

PalmSource Overseas Limited (Cayman Islands) (100% owned by PalmSource Holding

Company)

Subsidiaries of PalmSource Overseas Limited:

Palm Platform UK Limited (United Kingdom) (100% owned by PalmSource Overseas

Limited)

PalmSource Hong Kong Limited (Hong Kong) (100% owned by PalmSource Overseas

Limited)

Exhibit A-1

SCHEDULE I

SCHEDULE OF UNDERWRITERS


Underwriter		Number of Firm Shares to Be Purchased
Deutsche Bank Securities Inc.
▇▇▇▇▇▇▇ & Company, Inc.
First Albany Capital Inc.

Total		2,750,000

Schedule I-1

2,750,000 Shares PALMSOURCE, INC. Common Stock ($0.001 Par Value) UNDERWRITING AGREEMENT

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