But what if you want to send a Mii back to the Wii? "It's a one way transfer," NOA Product Marketing Manager Bill Trinen told Joystiq. "You can send your Miis from your Wii to your 3DS. But, because the Mii Maker on the Nintendo 3DS is a more robust program and has newer features, like hairstyles and eyes and things like that, the Miis you create there can't go back to the Wii." Too bad, because Mii Maker's ability to automatically create new avatars by taking pictures would expedite an otherwise lengthy process.
Can we expect any other connectivity between the two Nintendo devices? Perhaps, but Trinen didn't even offer a tease. "Beyond that, that's the only Wii connectivity we've talked about."