As for comments that Uncharted 2 could never work on the Xbox 360, Wells stresses that a platform does not dictate a game's worth and
"the differences that you see between any two games has much more to do with the developer than whether it's on the Xbox or PS3." He says that great "programmers and great artists are going to make a great game" and we all know Uncharted 2 certainly had both in spades. In the end, it's not like the Xbox 360 would benefit from having Uncharted 2, anyway.
http://www.joystiq.com/2009/10/16/na...ive-alongside/...