The 360 is an even more closed system than the PS3, today you can just about run backups/pirated discs but still no way to run homebrew code thanks to all the over eager protection so forget that!
The Wii is technically a bit of a let downsorry, the graphics barely eclipse a PS2, and anyway it's hardly a solution if you need to buy another hard drive AND boot off a {bleep}ty sd card with a hack gahh
So the idea of a console that runs OS4 is pretty much limited to the PS3 simply because it obviously has the ability to run Linux so why not anything else? Whether you want it or not is also a completely seperate discussion.
