Wiiquency: A Proof-of-Concept
While I was developing BodySurf I got the idea that this same concept could work with Frequency, too. Frequency (and its sister game, Amplitude) is a pretty fantastic music game by Harmonix where you move from track to track, "activating" different instruments one at a time and assembling a song piecemeal. It's pretty fantastic and definitely deserves some motion control love.
Unfortunately the game was only released for the PlayStation 2 and it's really hard to find at this point (even Amplitude is hard to find, too.) It's also one of the most underappreciated music games around, so naturally it's a cult classic. So the chances of a PC version coming out anytime are slim to nil. Unless someone invented some kind of device that piped the output from a PC's USB port to the input of a PS2 controller so we could get GlovePIE scripts running on the PS2 console, the only way we can play PS2 games with Wii controls is with a PS2 emulator.
But PCSX2, arguably the best PS2 emulator out there, won't run Amplitude at all and Frequency is extremely buggy, with laggy input and garbled sound (and both of those are unfortunately deal-killers for a music game.)
I wrote a proof-of-concept script for running Frequency with a Balance Board as well. It works, to the extent that it can work. I certainly wouldn't recommend playing the game this way. Nonetheless, if you know of any way to make the PS2 accept controller input from a PC, let me know. I'd be really eager to get this working.