GO check this out: http://www.youtube.com/watch?v=UYx4KJh2xTE
A person made this home-made Wii balance board! This is so cool!
You can go this site and they will show how he made it: http://www.nintendowiifanboy.com/2007/08/1...alance-boarder/
Think about the stuff a developer could do: many cool surfing and skateboarding games!!!!