true. as noted in anandtech's E3 comments, the 360 demos are running pared down a bit on Powermac rigs. arguably the main reason they are pared down is that the desktop graphics card aren't able yet to render the graphics in the way the would need to be on the actual 360 hardware. ( i think anand actually mentions this) i'm sure MS will do what it can to abstract their system from Apple's development kits for the sake of propriety. the question i have is in re: to how the "dev kits" have been used. my assumption is that it would be easier to have the xbox software running off it's own boot instead of in an emulation in OS X. in other words, Powermac hardware is likely more capable of doing "raw" gaming if OS X is not in the way, so to speak. if the development was in a proprietary xbox OS rather than within an emulation in OS X, it seems it'd be pretty hard to get the resulting apples, no pun intended, to fall too far from the hardware tree. but i'm not an expert in programming. but, can i/we at least fantasize?
if dual cores are around the corner for apple, as well as whatever nextgen GPUs come out from ATI and nVidia, i'd be kinda stoked about a quad core uber GPU Powermac to play w/ an OS X or an xbox OS port. or as noted, OS X on said xbox HW.