Someone just sent a mail to the xorg and compiz mailing lists, pointing to this YouTube video regarding a new way of (ab)using the Nintendo Wii to control a virtual environment. If you didn’t see it yet, check it out, it’s rather impressive:
I don’t know whether this could actually be useful in a pure desktop environment, but for games (although I’m no gamer myself) I could imaging this offers a whole new spatial experience. Up to Nintendo or third-party vendors to design and commercialize the necessary gadgets or remotes.
Too bad there’s not enough empty space around our TV at home, otherwise I think I’d buy a Wii, love the tennis game 
