Big nerd. As an example, I run the White Wolf Wiki.
My programming skillz are sadly not very up to snuff. One project I would absolutely love to see on the Wii is an SCI emulator. The old Sierra point-and-click adventure games are perfect for the Wii, and if ScummVM can do it for LucasArts, I don't see why someone can't do it for Sierra games. Controls are easy: Wiimote = mouse.
Unfortunately, the best SCI emulator out in the wild is FreeSCI, which currently only covers SCI0 games, which are all parser-based rather than point-and-click.
I'd love to do it, but it's been years since I've done any serious programming and I'd have no idea what I'm doing. Aside from thinking up cutesy names like Siiera or Wiiera.
My hat goes off to all the hardworking people who've put together the Wii Homebrew community.