SB for Wii U has... low chances of overseas release, honestly. It's a sales thing I think: the fanbase in North America is already pretty small, and I don't imagine there could be that many adopters. That said, it could happen at a later time, but European release on the 3DS should come first. SB programs on the 3DS work on the Wii U. Most Wii U programs will also work on the 3DS, unless they