I think it's pointless to re-release it. I know the PS2 re-release was alright, since they took out the hard-drive slot and put the power unit on the outside, and some other minor stuff, but it wasn't necessary by any means. The Wii is already small, I don't think they try to make it smaller and the next time they want to do something major, they should just make a new system. I think they're set for a while
