yea I agree with starcraft and legend on this. For the sake I think Microsoft is trying to convince Square Enix and Konami to put both of those titles on the console. I don't see any problem with them. Only some Sony fanboys will point out that disk space will be a problem. Which I don't see a problem with what so ever.
Xbox 360 has a unique easy to use hardware and Konami and Square should jump aboard and make ports of those games.
MGS4 announced for the 360 is a wait and see!