or perhaps in parallel computing if I had a lot of them? Making money off of the them would be nice, but even an interesting weekend project would be fun as well.
Just looking for ideas.
Edit: I should probably note that I'm not afraid of softmodding, as I've done a half dozen or so of those over the last decade, including the Wii itself. It can be nerve-wracking, but given the number of units I'd be working with, one or three going bad would hardly be the end of the world