Everyone's repeating what I already wrote here about the game running on the 360.
I like to add to the subject now that the Xbox version not only changes some textures quite noticeably, it also removes some of them entirely. They made a bunch of mistakes when they changed things wich is just stupid. Even stranger is that it's lacking some objects like signs and support beams here and there and some of the transparent objects have been dumbed down.
http://shenmuedojo.net/new/extras/s2xbo ... mcast.html
I never understood many of these changes. Most of them actually make things worse. They can't just be artistic choices. But could they be because they had to maintain overall performance? Removing glass and replacing it with metal seems like it. The Xbox should have no problems with this. Thinking about this now, maybe they had to do this because of problems with the real time shadows and glass?