GiantBomb had an interview with Nintendo's PR rep after E3 about the Wii U and some more details were revealed.
1) Unlike with the Wii, DS, and 3DS, Nintendo is not forcing or making it mandatory that the launch and earlier Wii U games must have some sort of "gimmick" to show case the new features of the system.
2) Even though the exact distance wasn't given, the Wii U controller is expected to have a "living room" style range or at least a range similar to DS trying to connect with each other or the Wii.
3) While only one controller was shown at E3, Nintendo did say that was on purpose since the focus of E3 was all about the new experience of the controller for a player and not necessarily means only 1 controller possible.
4) Theoretically it is possible to use a Wiimote to work on a Wii U screen since the controller itself has its own sensor.
5) Battle Mii and the other Mii-related demos might not become actual games or even be packaged like a "Wii Sports" for the new Wii U
http://www.giantbomb.com/news/heres-...ut-wii-u/3368/