[Specimen Common Stock Certificate]

by Advanced Technology Acquisition Corp
October 6th, 2006
[SPECIMEN COMMON STOCK CERTIFICATE]
NUMBER
____________SHARES
C -_________
 

ADVANCED TECHNOLOGY ACQUISITION CORP.
Incorporated under the Laws of the State of Delaware


COMMON STOCK
CUSIP [_________]
 
SEE REVERSE FOR
 
CERTAIN DEFINITIONS


This certifies that ___________________________________ is the owner of_____________________________

FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $.0001 EACH OF THE COMMON STOCK OF
ADVANCED TECHNOLOGY ACQUISITION CORP.

transferable on the books of the Corporation in person or by duly authorized attorney upon surrender of this certificate properly endorsed. This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar.
 
Witness the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers.

 
Dated:____________________
       
       
CHAIRMAN OF THE BOARD 
   
COUNTERSIGNED AND REGISTERED: 
       
     
CONTINENTAL STOCK TRANSFER & TRUST COMPANY 
     
(New York, NY) 
     
AS TRANSFER AGENT AND REGISTRAR 
       
SECRETARY 
     
       
     
By:
   
     
AUTHORIZED OFFICER


ADVANCED TECHNOLOGY ACQUISITION CORP.
The Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional or other special rights of each class of stock or series thereof of the Corporation and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall be held subject to all the provisions of the Certificate of Incorporation and all amendments thereto and resolutions of the Board of Directors providing for the issue of shares of Preferred Stock (copies of which may be obtained from the secretary of the Corporation), to all of which the holder of this certificate by acceptance hereof assents.
The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations:
 
TEN COM - as tenants in common    UNIF GIFT MIN ACT - _____ Custodian _______ 
TEN ENT - as tenants by the entireties   
(Cust)              (Minor) 
JT TEN - as joint tenants with right of survivorship and not as tenants in common   
under Uniform Gifts to Minors Act ____________ 
   
(State) 
Additional Abbreviations may also be used though not in the above list.

For value received, ___________________________hereby sell, assign and transfer unto:
 
___________________________________________________________________
(PLEASE ALSO INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE)

___________________________________________________________________

___________________________________________________________________
(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)

__________________________Shares represented by the within Certificate, and do hereby irrevocably constitute and appoint ______________________________ Attorney, to transfer the said Shares on the books of the within named Company with full power of substitution in the premises.

Dated ________________   ______________________________________
NOTICE: The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.

Signature(s) Guaranteed: __________________________
THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

The holder of this certificate shall be entitled to receive funds from the trust fund only in the event of the Company's liquidation upon failure to consummate a business combination or if the holder seeks to convert his respective shares into cash upon a business combination which he voted against and which is actually completed by the Company. In no other circumstances shall the holder have any right or interest of any kind in or to the trust fund.