JAMDAT Mobile to Provide Prizes for MONOPOLY Best Chance Game 2.0

JAMDAT Mobile to Provide Prizes
for MONOPOLY(TM) Best Chance Game 2.0 at McDonald’s(TM)

The McDonald’s promotion runs
until November 8th 2004

LOS ANGELES, CA – (October 28, 2004)
– Global wireless entertainment publisher JAMDAT Mobile Inc., announced today it
is providing game prizes for MONOPOLY Best Chance Game 2.0, now available at
participating McDonald’s restaurants through November 8 or while supplies last.
JAMDAT is providing the following wireless and PC games as prizes:

* "JAMDAT Bowling" (wireless)

 * "JAMDAT SPORTS Golf 2004"

 *"JAMDAT Solitaire" (wireless)

* "Lemonade Tycoon" (PC)

* "The Emperor’s Mahjong" (PC)

MONOPOLY Best Chance Game 2.0 offers
consumers the familiar McDonald’s promotional game, plus a new online version (www.playatmcd.com)
where consumers have a chance to win electronic and downloadable prizes –
including JAMDAT wireless and PC games.

"We are pleased to be working with
McDonald’s to provide prizes for MONOPOLY Best Chance Game 2.0, McDonald’s most
popular promotional game," said Mitch Lasky, Chairman and CEO of JAMDAT Mobile
Inc. "Consumers who win will be able to download and enjoy JAMDAT wireless or PC
games including ‘JAMDAT Bowling’ and ‘Lemonade Tycoon.’"

The availability of JAMDAT wireless
games will depend on a consumer’s wireless carrier and phone model.

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,"
"Lemonade Tycoon(TM)," "Bejeweled," "The Lord of the Rings(TM)," "Tony Hawk’s(TM)
Underground" and "Scrabble(TM)." JAMDAT distributes its applications through
wireless carriers, including AT&T Wireless, China Mobile, Cingular, 02 (UK),
Nextel, NTT DoCoMo, Orange, Sprint, Telefonica Moviles, T-Mobile, Verizon
Wireless, Vivo and Vodafone. For additional information, please visit

About McDonald’s

McDonald’s is the leading global
foodservice retailer with more than 30,000 restaurants serving nearly 47 million
people in more than 120 countries each day. Approximately 80 percent of
McDonald’s restaurants worldwide are owned and operated by independent, local
businessmen and women. For nutritional information, please visit

(C) 2004 JAMDAT Mobile Inc. JAMDAT,
JAMDAT Mobile and the bubbles logo are trademarks of JAMDAT Mobile Inc.

MONOPOLY: (R), (TM) & (C) 2004

(C) 2004 McDonald’s Corporation # #