BodySurf — Audiosurf Meets the Wii Balance Board
Chardish writes "Forget the hype about Wii Fit — the coolest thing about the Wii Balance Board is its potential as a game controller, and what better way to christen a new peripheral than by rigging it to work with games that predate the peripheral's existence? BodySurf is a (somewhat lengthy) GlovePIE script that manipulates the input of the Balance Board to work with the PC music game Audiosurf. It's fairly sophisticated, and includes Wiimote motion controls, special controls for each character, weight calibration, and a few play options."
Sounds like Audiosurf would make a great WiiWare title. You can already load MP3s onto an SD card and play them in certain games (Excite Truck), the balance board is a natural controller that can make the game more interesting (without being incredibly hard to add support for), and the price of Audiosurf fits in with other WiiWare games.
When someone says, "Any fool can see
People have also had some good successes hooking up other Wii devices to their PC.
I personally bought a bluetooth adapter specifically for trying out these sort of things.