also... this controller sounds crazy town!
it's sposda have two joysticks, a d-pad, and all the regular buttons. and if it's backward compatible, it'll also have wii-mote/nunchuck type parts. and now, it also has a 6" screen in it, that will not only beam content to the controller, but also have touch-sensitivity.
...thats... something! it'd have to be huge, like ipad sized or something to cram all that in.
Sounds like a shell to me.