The Wii has been out for over a year and the cool hacks and tricks keep coming. This would not be possible if it was not for standards like Blue Tooth. You can easily connect your Wii remote to your computer using the blue tooth utilities. The remote gets registered as a joystick in Windows XP.
I got this video from Paul Mooney's blog, very very cool to watch. Johnny Chung Lee has done some very neat things mixing the Wii with a computer. Check out this video to get a taste for what he is doing over there: