News Release

Jamdat Mobile Announces Launch Of Socom: U.S. Navy Seals Mobile Recon For Verizon Wireless Get It Now Customers

Wireless Version of Sony Computer Entertainment America's Popular Gaming Franchise Debuts on Verizon Wireless' Get It Now Service

October 20, 2005

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

BEDMINSTER, N.J. & LOS ANGELES — Global wireless entertainment publisher JAMDAT Mobile Inc. (NASDAQ:JMDT), under its license agreement with Sony Computer Entertainment America, announced today that its SOCOM: U.S. Navy SEALs Mobile Recon game is now available to Verizon Wireless Get It Now® customers.

SOCOM: U.S. Navy SEALs Mobile Recon is a real-time strategy game full of team-based action and cinematic gameplay. The game allows Verizon Wireless customers with select Get It Now-enabled phones to command a two-man Navy SEAL recon team by assigning orders, shooting, sniping and blasting their way through eight intense missions. Players fight enemies with multiple assault rifles, C4 explosives and knives as they make their way through moving vehicles and power lines, machine gun turrets, flying birds, swaying trees and explosives. SOCOM: U.S. Navy SEALs Mobile Recon allows mobile thrill seekers the ability to relive the SOCOM experience, anytime, anywhere.

"SOCOM's fan base of loyal players will be excited to see their favorite game now available in the wireless arena," said Mitch Lasky, Chairman and CEO of JAMDAT Mobile Inc. "By bringing this very popular title to Verizon Wireless' Get It Now customers, we will be able to reach a tremendous group of both wireless gamers and SOCOM fans."

SOCOM: U.S. Navy SEALs Mobile Recon has already received rave reviews from influential gaming Web sites, including:

GameDAILY (rated 4 out of 5)
"JAMDAT is the leader in making quality software for these platforms and SOCOM U.S. Navy SEALs Mobile Recon is yet another shining example of how this company outperforms the competition. The fine attention to detail as well as the commitment to creating an enjoyable gameplay experience (and following through on both of those points) has become the publisher's pedigree for success and I hope a deal is struck with Sony to produce a sequel."

IGN Wireless (rated 9 out of 10)
"Like JAMDAT's DOOM RPG, SOCOM: US Navy SEALs Mobile Recon feels more like a video game that you just happen to play on a cellphone rather than a video game you can just tell was crammed on to a handset. Don't miss this one."

SOCOM: U.S. Navy SEALs and SOCOM II: U.S. Navy SEALs set the standard for online console gaming tactical team-based gaming, selling over six million units on the PlayStation 2 platform to date, making the franchise among the best-selling squad-based war strategy titles of all time. SOCOM II: U.S. Navy SEALs broke online console penetration records within the first two days of its release. SOCOM 3: U.S. Navy SEALs, released October 8, 2005, is the third title in the popular, squad-based war strategy game franchise. In addition, coming out on November 8, 2005, is SOCOM: U.S. Navy SEALs FireTeam Bravo, which is the franchise's first title for the award winning PSPTM (PlayStation® Portable) system.

Verizon Wireless Get It Now customers can purchase and download SOCOM: U.S. Navy SEALs Mobile Recon from the getGAMES shopping aisle in the Get It Now virtual store for $3.99 monthly access or $7.49 for unlimited use purchase. Download charges for Get It Now applications vary and airtime charges apply when browsing, downloading and using certain applications. Customers need a Get It Now-enabled phone and Verizon Wireless digital service to access the Get It Now virtual store.

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.  

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®, Downtown Texas Hold 'Em, Lemonade Tycoon®, 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.  

About Verizon Wireless
Verizon Wireless owns and operates the nation's most reliable wireless network, serving 47.4 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 Get It Now
Get It Now from Verizon Wireless puts a virtual software store inside a wireless phone and lets customers download applications over the air and purchase them directly from their phones. Virtual shopping aisles, including getGAMES, getTONES, getGOING, getPIX, getFUN and getMESSAGING, are organized to help customers find what they want, when they want it.

About Sony Computer Entertainment America Inc.
Sony Computer Entertainment America Inc. continues to redefine the entertainment lifestyle with its PlayStation® and PS oneTM game console, the PlayStation®2 computer entertainment system and the PSPTM (PlayStation® Portable) system. The PlayStation 2 computer entertainment system is set to revolutionize the home entertainment market, offering the most compelling interactive content and the capability to be used as a network terminal in the coming broadband era. PSP is a new portable entertainment system that allows users to enjoy 3D games, with high-quality full-motion video, and high-fidelity stereo audio.

Recognized as the undisputed industry leader, Sony Computer Entertainment America Inc. markets the PlayStation family of products and develops, publishes, markets and distributes software for the PS one game console, the PlayStation 2 computer entertainment system and the PSP system for the North American market. Based in Foster City, Calif., Sony Computer Entertainment America Inc. serves as headquarters for all North American operations and is a wholly owned subsidiary of Sony Computer Entertainment Inc.

(C)2005 JAMDAT Mobile Inc. JAMDAT, JAMDAT Mobile and the bubbles logo are trademarks of JAMDAT Mobile Inc. SOCOM: U.S. Navy SEALs is licensed by Sony Computer Entertainment America Inc. All rights reserved. (C) 2005 Sony Computer Entertainment America Inc. Get It Now is a registered trademark of Verizon Wireless. "PlayStation" and the "PS" Family logo are registered trademarks and "PSP" and "UMD" are trademarks of Sony Computer Entertainment Inc. All other trademarks are property of their respective owners.

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.

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