This is something we thought would never happen! Sega and Nintendo got together to bring us Mario and Sonic in the same game!! Mario and Sonic at the Olympic Games is due out around Christmas this year... It looks like we'll finally get to answer the age old question, "Who's better? Mario or Sonic?" Go Mario!
Could this be an April fools joke that Sega is pulling on us?!? Lets wait and see...

http://www.sega.com/gamesite/marioandsonic/index.php

In Mario & Sonic at the Olympic Games, players will compete in events that take place in environments based on the official venues of the Beijing 2008 Olympic Games. Using a supporting cast of characters from the amazing worlds of both Mario and Sonic, gamers will be able to compete as or against a range of lovable personalities including Mario, Sonic, Luigi™, Knuckles™, Yoshi®, Tails™ and more. Innovative usage of the Wii and DS control systems to maneuver a favourite character will allow players to race the likes of Mario and Sonic down the 100m track, engage in exhilarating rallies in table tennis and churn water in a swimming heat, all while competing for the much sought after gold medal.