Yea, I'm pretty sure the corded GHII controllers aren't compatible with the Wii version.

I'm thinking of buying the $79 controller though, since I'm pretty sure I'll be bored/moved on from with GHIII by the time toysrus gets theirs in at the end of January. And with no DLC for the Wii version on the horizon, I don't see the replay value for this game being as high as I would have liked.