Do they mean as a retail Wii game or a WiiWare download? I would like to think WiiWare, 'cause the game is not exactly graphically intensive or anything like that.
Regardless, Angry Birds is a good fit for the Wii platform. The controls should transition over nicely to the pointer -- hold button, drag out trajectory, release button. Having said that, I hope they don't keep milking it with re-skins e.g. Angry Birds Halloween and Angry Birds Christmas, like they have been on the App Store.