DOOM RPG Wins ''Mobile Phone Game of the Year'' Award at the 2005 Digital Entertainment & Media Excellence Awards.

LOS ANGELES -- Global wireless entertainment publisher JAMDAT Mobile Inc. (NASDAQ: JMDT) announced today that id Software's popular title DOOM RPG(TM) has been named "Mobile Phone Game of the Year" at the 2005 Digital Entertainment & Media Excellence (DEMX) Awards, presented yesterday evening at the Century Plaza Hotel in Los Angeles. DOOM RPG was co-developed by Fountainhead Entertainment and id Software, and is published by JAMDAT Mobile.

"It is an honor to be recognized by such influential members of the digital entertainment industry," said Mitch Lasky, Chairman and CEO of JAMDAT Mobile Inc. "It was a pleasure to work with the brilliant team at id Software to bring DOOM RPG to wireless. It is gratifying to have this groundbreaking game named 'Mobile Phone Game of the Year.'"

"I am very pleased that our initial foray into mobile gaming has been so well received," said John Carmack, Co-owner and Technical Director of id Software. "It was exciting to develop a new game play style on a new platform in such a short time, and we are looking forward to exploring many other interesting possibilities in the mobile space in the coming years."

"We are pleased to recognize JAMDAT and id Software for their success with DOOM," said Ned Sherman, CEO and Awards Co-Chair of Digital Media Wire. "JAMDAT continues to show that it is one of the most innovative and creative companies in the mobile entertainment space."

The 2005 DEMX Awards included 30 market-leading categories honoring innovation and entrepreneurship in digital music, film, games and marketing. Judges were comprised of an elite group of industry executives and leaders hand picked from the digital entertainment industry, representing the creative community, major entertainment companies, academic institutions and the media. The DEMX Awards were presented at the awards dinner as part of the DEMXPO, a comprehensive digital entertainment and media event, which represented all sides of the industry such as digital TV and video, digital music, advertising, gaming and wireless.

DOOM RPG is a new take on id Software's world-renowned DOOM franchise. The game preserves the look, feel and excitement of the original DOOM(R) game, while integrating a tactical, turn-based combat system for easy to learn one-handed gaming. Crafted specifically for mobile phones, DOOM RPG sends players to a secretive Martian research facility to solve the mystery of a massive demonic invasion. DOOM RPG captivates die-hard fans looking for a little bit of hell on-the-go while introducing a whole new generation to the classic that started the first-person gaming revolution.

The DEMXPO is sponsored by three of VNU's leading publications, Adweek magazines (including Adweek, Mediaweek and Brandweek), Billboard Magazine and The Hollywood Reporter, in addition to Nielsen Entertainment and Digital Media Wire.

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(R), 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.

About id Software:

id - Freud's primal part of the human psyche and one of the hottest game shops on Earth - has been rocking the gaming world from Mesquite, Texas since 1991. As a renowned leader in the industry, id Software forged such frenetic franchises as Wolfenstein 3D, DOOM(R), DOOM II(R), QUAKE(R) QUAKE II(R), QUAKE III Arena(R), Return to Castle Wolfenstein(R) and DOOM 3(R). With intense graphics and mind-blowing action, id's games have helped redefine the modern video game, continually setting industry standards for technology and gameplay. Check out more about id Software at www.idsoftware.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. DOOM and DOOM RPG are either registered trademarks or trademarks of Id Software, Inc. in the United States and/or other countries. JAMDAT, JAMDAT Mobile and the bubbles logo are trademarks of JAMDAT Mobile Inc.