[cjtenny]

Well, I2C is a standard protocol. I actually have a nunchuk sitting in my room for use on another non-FIRST robot... haven't gotten around to it, though.

But, yeah, you bring a good point -- I forgot you load code to the RC. What you'd have to do for the OI would be build a custom circuit that turns the nunchuk output into some serial-joystick type output. That part's probably not too hard, just stick a uC on a breadboard -- the question is, would that be legal?