I'm thinking that it's late enough in the console lifecycle that should a new accessory come out next year, there won't be enough time for it to gain traction and have any meaningful use. I say to wait for the Wii's successor, or maybe even have a port on the 3DS for one to be added in, also? A portable with expansion options poses some interesting possibilities...
-dunno001
-On a quest for the truly perfect game; I don't think it exists...







