News Release

JAMDAT Mobile Launches Tony Hawk's Pro Skater: 3D Mobile Edition On V CAST From Verizon Wireless

3D Version Of Popular Skateboarding Game Now Available Exclusively On The Nation's First Consumer Wireless Broadband Multimedia Service

April 25, 2005

Jeffrey Nelson
Jeffrey.Nelson@VerizonWireless.com
908-306-4824Dena Cook
JAMDAT Mobile Inc.
dena.cook@zenogroup.com  
310-566-2283

LOS ANGELES, CA and BEDMINSTER, NJ — Global wireless entertainment publisher JAMDAT Mobile Inc. (NASDAQ:JMDT) and Verizon Wireless, the nation's leading wireless provider, announced today the availability of Tony Hawk's Pro Skater: 3D Mobile Edition on V CAST, the nation's first true wireless broadband consumer multimedia service. V CAST enables customers to view crystal clear graphics for 3D games and short content because it runs on Verizon Wireless' Evolution-Data Optimized (EV-DO) network -- the only widely available wide-area wireless broadband network in the United States.

Tony Hawk's Pro Skater: 3D Mobile Edition allows players to transform their wireless phones into an all-out skating blitzkrieg, with new, state-of-the-art 3D graphics. The high-tech graphics engine enables gamers to pull off signature tricks like grinds, grabs and flips in nine massive classic courses. Players complete level specific goals to earn props and unlock special features in the most authentic and intense mobile skateboarding experience ever.

"On the heel of Verizon Wireless' successful V CAST launch of JAMDAT Bowling 3D, we are providing one of our most popular games, Tony Hawk's Pro Skater, as our next installment in 3D gaming," said Mitch Lasky, Chairman and CEO of JAMDAT Mobile Inc. "Tony Hawk's Pro Skater: 3D Mobile Edition takes mobile gaming to a whole new level with an incredible 3D gameplay experience."

V CAST's array of hot new multimedia programming is located in the Get It Now® virtual store -- customers can access video from favorite news, sports and entertainment providers in the getFLIX shopping aisle and check out new cutting-edge 3D games, including Tony Hawk's Pro Skater: 3D Mobile Edition, in the getGAMES aisle. V CAST also gives customers unlimited airtime to browse and view applications in the other familiar Get It Now shopping aisles -- such as getTONES and getGOING.

For $15.00 monthly access added to their Verizon Wireless calling plan, customers get the V CAST VPak which includes unlimited access to a wide array of more than 300 daily updated video clips from leading content providers. Unlimited basic video clips are included, but application download fees will still apply for 3D games, premium video clips, and all other Get It Now applications. For a limited time, customers who sign up for V CAST will receive two months of service free. Verizon Wireless V CAST customers also receive monthly access and unlimited browsing on Verizon Wireless' Mobile Web 2.0SM news and information service. In addition, customers can choose from premium video clips, available at additional cost that will include music videos and more.

Tony Hawk's Pro Skater: 3D Mobile Edition is available in the getGAMES shopping aisle of the Get It Now virtual store for $2.49 monthly access or $8.99 for unlimited use purchase. There are no airtime charges to download Tony Hawk's Pro Skater: 3D Mobile Edition or stream and watch other V CAST short content.

V CAST customers can play Tony Hawk's Pro Skater: 3D Mobile Edition on the new Samsung a890, which is $249.99 after a $70 mail-in rebate with a two-year customer agreement, and the CDM8940 from UTStarcom Personal Communications (formerly Audiovox Communications Corp.) for $229.99 after a $70 mail-in rebate with a two-year customer agreement.

For more information about Verizon Wireless products and services, visit a Verizon Wireless Communications Store, call 1-800-2 JOIN IN or go to www.verizonwireless.com.  

NOTE TO EDITORS: High-resolution images of Tony Hawk's Pro Skater: 3D Mobile Edition by JAMDAT on V CAST are available online. Log on to www.verizonwireless.com/multimedia to preview and request images.

About Verizon Wireless
Verizon Wireless owns and operates the nation's most reliable wireless network, serving 43.8 million voice and data customers. Headquartered in Bedminster, NJ, Verizon Wireless is a joint venture of Verizon Communications (NYSE:VZ) and Vodafone (NYSE:VOD)(LSE:VOD). Find more information on the Web at www.verizonwireless.com. To preview and request broadcast-quality video footage and high-resolution stills of Verizon Wireless operations, log on to the Verizon Wireless Multimedia Library at www.verizonwireless.com/multimedia.  

About JAMDAT Mobile
JAMDAT Mobile Inc. (NASDAQ:JMDT) 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®, Lemonade TycoonTM, Downtown Texas Hold 'Em, Bejeweled, The Lord of the Rings®, Tony Hawk's® Underground and Scrabble®. 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 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.

©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.

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