ThatOtherPerson released the first version of wii homebrew----Hero City V0.1 , and it is a work in progress game for the Wii and Windows.
Download link : Hero City
Here is the details
QUOTE(Release Notes 05/17/11)
Oh procrastination, why must you constantly slow my progress?
I started making this game ages ago but I havenít been working on it as much as I could have. I havenít really been doing much of anything lately. But with less then two weeks remaining before the Nintendomax Wii Dev Compo 2011 deadline Iíve begun working on it again. Its not yet really a game but Iím still hopeful that I will be able to finish it in time.
In Hero City you play as a superhero and fly around fighting monsters.
Use the nunchuck analog stick to move.
Use the wiimote pointer to turn.
Use the A button to jump, fly and run.
Iíll probably be changing the controls later and moving flying/running to their own button or buttons. There is a lot that will be changed as the game becomes more complete.