One of the finest co-op beat 'em ups of all time, X-Men Arcade, is coming to a phone near you. The mutant slugfest is now available for iOS devices, for the relatively low price of a dozen quarters ($2.99). Multiplayer is supported for up to four players, and leaderboards and Facebook integrations round out the game's mutant abilities. The game is only compatible with third gen and beyond devices, so iPhone 3G users are out of luck. It's great to see more and more classic games available on a variety of platforms these days!