JAMDAT Mobile Launches Wireless Games in India on the Reliance Infocomm Network

Global wireless entertainment publisher JAMDAT Mobile
Inc. (NASDAQ:JMDT) announced today the launch of its games on
Reliance Infocomm, the largest CDMA (Code Division Multiple Access)
wireless carrier in India. The announcement was made at the CTIA
Wireless I.T. and Entertainment 2005 trade show in San Francisco. Many
of JAMDAT Mobile's JAVA- and BREW-enabled games are now available to
more than 10 million customers throughout India.
   Reliance Infocomm operates a pan-Indian, high capacity, integrated
(wireless and wireline) and convergent (voice, data and video) digital
network. Its CDMA technology enables users to choose from a host of
advanced services, including web browsing, mobile commerce, streaming
video, games and enterprise solutions.
   "With Reliance Infocomm's easy-to-use interface and `R-World'
e-commerce solution, subscribers in India can quickly and easily
access and download JAMDAT's games," said Mitch Lasky, Chairman and
CEO of JAMDAT Mobile Inc. "We look forward to providing our exciting
JAMDAT titles to millions of wireless gamers throughout India."

   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.