How many players can be supported in game center? I noticed games like N.O.V.A. 2 and Modern Combat 2 both don't use game center when Dungeon Hunter 2 does. Does this have to do with the amount of players online? Is there a way to make an MMO that uses game center for achievements but some other online system for the connecting of all the players? Also the stereoscopic 3D for the 3DS what makes it so special that you don't need the glasses? I always thought it was because the screen was small enough the dead zone was bigger which was the reason for the glasses for bigger TVs. Can the iphone do a similar stereoscopic 3D? I've seen some games use the red/cyan glasses method.