It seems that Rya Payton has recently announced in his podcast, that Metal Gear Solid four is in it's "Last Push" for the second quarter, and is undergoing bug testing. However the game will be shipping around the world in release dates only a few days away from each other. So not a simultaneous release but close enough. Also there is a set "Emergency Day" will they will announce the final release date, packaging content, game details ect though the date on the Emergency Day was not given. Source: http://www.joystiq.com/2008/01/11/metal-gear-solid-4-in-last-push-for-q2-release/
