EXHIBIT A
JOINT FILING AGREEMENT
In accordance with Rule 13-d(k)(1) promulgated under the Securities Exchange Act
of 1934, the undersigned agree to the joint filing of a Statement on Schedule
13D (including any and all amendments thereto) with respect to the Common Stock
of Return on Investment Corporation, and further agree to the filing of this
agreement as an Exhibit thereto. In addition, each party to this Agreement
expressly authorizes each other party to this Agreement to file on its behalf
any and all amendments to such Statement on Schedule 13D.
Dated: December 17, 2004
VERIFONE HOLDINGS, INC.
By: /s/ Xxxxx Xxxxxxxxxxx
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Title: Chief Financial Officer
VERIFONE INTERMEDIATE
HOLDINGS, INC.
By: /s/ Xxxxx Xxxxxxxxxxx
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Title: Chief Financial Officer
VERIFONE, INC.
By: /s/ Xxxxx Xxxxxxxxxxx
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Title: Chief Financial Officer