JAMDAT Announces Early Termination of Hart-Scott-Rodino Waiting Period

Global wireless entertainment publisher JAMDAT Mobile
Inc. (NASDAQ:JMDT) announced today that the waiting period imposed by
the Hart-Scott-Rodino Act in connection with its proposed acquisition
by Electronic Arts Inc. was terminated effective as of January 3,
2006.
   The transaction remains subject to various closing conditions,
including the approval of stockholders of JAMDAT and foreign antitrust
regulatory approval. The proposed transaction was announced December
8, 2005, and is expected to close in the quarter ending March 31,
2006.

   About JAMDAT Mobile Inc.

   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.

   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.

   Additional Information and Where to Find It

   In connection with the proposed acquisition, JAMDAT has filed a
preliminary proxy statement with the Securities and Exchange
Commission (the "SEC") and will file a definitive proxy statement with
the SEC. The definitive proxy statement will be mailed to the
stockholders of JAMDAT. JAMDAT's stockholders are urged to read the
proxy statement and other relevant materials because they will contain
important information about the acquisition and JAMDAT. Investors and
security holders may obtain free copies of these documents and other
documents filed with the SEC at the SEC's web site at www.sec.gov. In
addition, investors and security holders may obtain free copies of the
documents filed with the SEC by JAMDAT by going to JAMDAT's Investor
Relations page on its corporate website at http://investor.jamdat.com.
   JAMDAT and its officers and directors may be deemed to be
participants in the solicitation of proxies from JAMDAT's stockholders
with respect to the acquisition. Information about JAMDAT's executive
officers and directors and their ownership of JAMDAT common stock is
set forth in the proxy statement for JAMDAT's 2005 Annual Meeting of
Stockholders, which was filed with the SEC on April 15, 2005, and the
preliminary proxy statement filed on December 22, 2005. Investors and
security holders may obtain more detailed information regarding the
direct and indirect interests of JAMDAT and its respective executive
officers and directors in the acquisition by reading the preliminary
and definitive proxy statements regarding the merger, which will be
filed with the SEC.
   In addition, Electronic Arts and its officers and directors may be
deemed to have participated in the solicitation of proxies from
JAMDAT's stockholders in favor of the approval of the acquisition.
Information concerning Electronic Arts' directors and executive
officers is set forth in Electronic Arts' proxy statement for its 2005
Annual Meeting of Stockholders, which was filed with the SEC on June
24, 2005, and Annual Report on Form 10-K filed with the SEC on June 7,
2005. These documents are available free of charge at the SEC's web
site at www.sec.gov or by going to Electronic Arts' Investor Relations
Website at http://investor.ea.com.