"One of the ways that we're looking at doing that, is the idea of really strengthening the tag mode functionality," he explained, referring to an "always on" data-sharing feature most famously employed by Dragon Quest IX on DS. "We think that there will be some unique ideas that come out of that, and that it will have a very unique Nintendo flavor to it." So, not voice chat or friend code-free multiplayer then?
Speaking of exchanging things with other 3DS owners: what of Miis? Already transferable from Wii to current DS titles such as Tomodachi Collection and Personal Trainer: Walking, Miyamoto commented that the pint-sized avatars moving to-and-fro between future platforms is "something that we're definitely giving consideration to," and that there's a desire to "continue to try to allow people to use their Miis on different Nintendo systems going forward." We can certainly get down with the idea of 3D Miis -- or, as we call them, "3Miis."