I can't wait to get this thing hooked up to a PC. I wasn't really sold on it when I read about it, but after seeing the trailer, I'm wowed. Scripting with it could be a lot harder than for a Wiimote, but it would be worth it.
Programmers interested? Glovepie appears to be closed for new development, but OpenPIE is working towards replacing it with an open source solution. The more help the better.