This game *deserves* to sell so much. It took a lot of heat early on for being a "cash out" but that couldn't be further from the truth. If you haven't bought it, go pick it up for your Wii -- even if you played and finished it on your Cube. The controls are so much better it is just silly mad fun. I'm just about done with it (again) and enjoying every minute of it.
Hopefully this will encourage other capcom titles and other "rails" and "near rails" shooters to take a serious look at the console.