The dig against the Wii is that it's pretty much a GameCube. With a new controller. But, so what? In a recent interview, Nintendo's Shigeru Miyamoto confirms that:
"The hardware is basically a GC. We've upgraded our development tools to new versions but, you can still use GC programs as they are. With that in mind, I thought we could remake GC titles for the Wii and modify them to work with the Wii remote so that they're more fun to play."