The problem for Apple would not be the hardware, but the ecosystem. Just like they dominate with iTunes and a massive App Store, and it limits other entrants, Microsoft and Sony have massive ecosystems, of which the XBox is the best IMO. If you switch to an Apple game environment, you give up your circle of friends that you game with on which ever current console you use. You give up the backwards compatibility of older games that the consoles offer, even when they update hardware. I would not give up my friends, game library or "Gamerscore" and list of achievements for anything Apple may come out with. And that is coming from a pretty major Apple fan. Apple, I am sure, understands this challenge if they tried to enter this market, and knows it is rather prohibitive. The social network of gaming makes people very loyal. Very different than switching TV or Phone hardware.