One of the big beefs gaming companies have had is that it's a pain to go about doing hardware-specific things (like Altivec optimizations) for Macs;
Really? I wasn't aware toggling a switch in CodeWarrior was such a big deal. So don't even start up the "OMG OS X ON MY DELL!!111!!!eleven!!" crap.
Never mind that. How about the "OMG WinXP on my Mac!!!" thing instead? Surely one of the reasons Apple has any market share at all is because they (until quite recently) did not have to compete against PC's.Noone is going to buy an already obsolete Mac between now and then, and noone is going to buy a rediculously overpriced PC. Last nail in the coffin, if you ask me. About time too - all the other old school and innovative computer companies went bust ages ago.