Come on! How good would that be? Especially with the many reported problems with the current MM! I know its dreaming, but just wanted to know if anyone else has given this a thought!
It wouldn't be a problem to make a mouse shape from Aluminium.
I don't think they will though. The new Mac Pro that was released this week now has the Aluminium keyboard so if there was going to be a new mouse I would have expected it to be included with that update.