1. I like the Mii concept but would like to put my face and my kids' faces on them. You can already get pictures in there with SD card so Nintendo already has all of the tools to make it happen.
2. Be able to play any VC or GC game with the wiimote.
3. Wii / DS communication.
4. Demo download for Wii / DS.
5. Ability to exit a GC game without powering down.