JAMDAT Mobile to Present at the Goldman Sach's 6th Annual Internet Conference

Business Wire, May 12, 2005

LOS ANGELES -- Global wireless entertainment publisher JAMDAT Mobile Inc. (NASDAQ:JMDT) announced today that Mitch Lasky, the Company's Chairman and CEO, and Michael Marchetti, the Company's Chief Financial Officer, will be presenting at the Goldman Sachs Sixth Annual Internet Conference, to be held May 25-26 at The Bellagio in Las Vegas, NV.

JAMDAT's investor presentation will be webcast live at 10:15 a.m. PDT on Wednesday, May 25, 2005 and will be available on the investor relations section of JAMDAT's website at www.jamdat.com.

About JAMDAT Mobile Inc.

JAMDAT Mobile Inc. is a global publisher of wireless entertainment applications, including games, ring tones, images and other content. JAMDAT's application portfolio is based on original and licensed intellectual properties and includes JAMDAT Bowling, Tetris(R), Downtown Texas Hold 'Em, Lemonade Tycoon(R), Bejeweled, The Lord of the Rings(R), Tony Hawk's(R) Underground and Scrabble(R). JAMDAT distributes its applications through wireless carriers, including Boost Mobile, Cingular Wireless, 02 (UK), Nextel, NTT DoCoMo, Orange, Sprint, Telefonica Moviles, T-Mobile, Verizon Wireless, Virgin Mobile, Vivo and Vodafone. For more information, please visit www.jamdat.com.

(C) 2005 JAMDAT Mobile Inc. JAMDAT, JAMDAT Mobile and the bubbles logo are trademarks of JAMDAT Mobile Inc. All other trademarks are the property of their respective owners and are used with permission.