libcli

Looks like a good piece of code. I don't imagine it's written for a space constrained embedded system, but it's got to have a nicer programmers interface than the RedBoot command line parser

SourceForge.net: User's Guide

wiiuse - The Wiimote C Library

I would love to be able to play around with this:

wiiuse - The Wiimote C Library

and use the Wiimote in Windows. (boy does that sound like Elmer Fudd or what?