JAMDAT Mobile Names Colts' Marvin Harrison and Panthers' Jake Delhomme as Cover Athletes for JAMDAT SPORTS NFL 2006

Business Wire, August 31, 2005

LOS ANGELES -- Global wireless entertainment publisher JAMDAT Mobile Inc. (NASDAQ:JMDT) announced today that Indianapolis Colts receiver Marvin Harrison and Carolina Panthers quarterback Jake Delhomme have been selected as cover athletes for JAMDAT's 2006 line-up of NFL-licensed mobile games. JAMDAT SPORTS NFL 2006 launched to coincide with the start of the professional football season.

"Marvin Harrison ranks as the most productive receiver in the Colts' history, and quarterback Jake Delhomme led his team to the Super Bowl in 2003," said Mitch Lasky, Chairman and CEO of JAMDAT Mobile Inc. "Their passion for the game and their talent and achievements on the field make them ideal cover stars for JAMDAT SPORTS' NFL products."

Harrison is the only NFL player with 100 receptions in four consecutive years (1999-02). He has averaged 6.1 receptions per game (845 in 139 games) over the course of his career, the best average in NFL history, and ranks seventh in NFL history with 845 receptions. After just 31 regular season starts, Delhomme ranks second all-time in Carolina history with 48 touchdown passes. In Super Bowl XXXVIII, Delhomme's passer rating of 113.6 was the second highest for a quarterback starting his first Super Bowl.

Game availability for JAMDAT SPORTS NFL 2006 depends on individual phone model and wireless carrier. For specific information, JAMDAT's Game Finder is available at www.jamdat.com.

About JAMDAT Mobile

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 around the world. For more information, please visit www.jamdat.com.

Safe Harbor Statement -- JAMDAT Mobile Inc.

This press release may include forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements related to anticipated revenues, expenses, earnings, operating cash flows, the outlook for JAMDAT's markets and the demand for its products. Factors that could cause JAMDAT's actual results to differ materially from these forward-looking statements include its ability to integrate the acquisition of Blue Lava Wireless, anticipated growth in the handset market, its ability to effectively market and sell products in diverse market segments, its reliance on a limited number of products and third-party vendors and distributors, its ability to expand studio operations, increases in fulfillment costs, disruptions to information technology systems, unpredictable events and circumstances relating to international suppliers, increased competition, government regulatory action and general economic conditions. Please refer to JAMDAT's reports and filings with the Securities and Exchange Commission for a further discussion of these risks and uncertainties. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date they are made. JAMDAT undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date they were made or to reflect the occurrence of unanticipated events.

(C)2005 JAMDAT Mobile Inc. JAMDAT, JAMDAT Mobile and the bubbles logo are trademarks of JAMDAT Mobile Inc.