It'd be pretty cool if they ported this to the move.
The biggest drawback to the Dreamcast version is the amount of setup required, and the cords swinging around.
The Wii version has the hardware limitation of not really being able to tell the height of wii remotes (I applaud Gearbox's efforts to get around this though).
With a move version, they could get around all of these issues. I would also buy this game a third time, because I love it so.