I really don't care for Xbox, so I can't say. As for Nintendo, I'm glad that they are, but if they weren't it wouldn't change my opinion that much. Then again, that is one thing that makes it awesome... as for Playstation, I have a PSX, and I don't have a PS2. I probably won't be getting a PS3 any time soon, but considering the price of the PS3, they'd better damn well make that thing backwards compatable.