You could use the balance board and nun chucks.... maybe some sort of mast an boom game controller adapter... Ideal for those no wind days and getting the kids into it!
My daughters got a Wii and I thought "ripper, now I can use the bloody thing" Imagine how funny you would look doing speed runs, standing like a retarded statue in the living room!!!!!!!!
Well it aint no Robby Naish, but I have just found out that a game called Wii Watersports (the germans in the room can stop giggling now) has windsurfing in it as one of the events! It also has Kiting and Jet skiis...hmmm.
Looks like this and is amazing to play & free to download trial version
I wish this came out on the wii. The gameplay would be much better and interactive. I mean with the ballance board and two controllers you could simulate a pretty good feeling game.