Yes I agree, because as of right now the only way we know that it's wii is because it says so. If you took that away, you probably wouldn't be able to tell the difference. As I said before they will probably change some things, and this is a very good idea.
The red steel one looks cool just cuz' the "L" is a gun and so does the LoZ, but as others have already pointed out, they need color! Something to distinguish wii from other consoles. The monkeyball cover is especially boring and I would think that would be one of the most colorful ones.