While I can’t say the title they chose is very exciting, this announcement is pretty big.

SEGA® Corporation and Nintendo Co. Ltd. today made a historical announcement that two of the biggest icons in the entertainment industry, Mario™ and Sonic™, are joining forces to star in Mario & Sonic at the Olympic Games. Developed for the Wii™ video game system and the Nintendo DS™ system, this momentous agreement marks the first time these two renowned stars have appeared together in a game.

Published by SEGA across Europe and North America, and published by Nintendo in the Japanese market, Mario & Sonic at the Olympic Games will be available for Holiday 2007 and is licensed through a worldwide partnership with International Sports Multimedia (ISM), the exclusive interactive entertainment software licensee of the International Olympic Committee (IOC).

An official Olympics game with Nintendo and SEGA characters sounds like a gold medal idea to me. How can they avoid screwing up this title?

[Update: added link to official site for the game.]