so given the latest impressions, and some of the supposed details about the controller, i felt like weighing in.
these go off of several assumptions, but here goes:
-i don't think nintendo will plan on doing something where your hands are managing controls above the screen. at worst, it'll be in the middle of the controller, like their recent handhelds or the original gba.
-if the system is going to be an hd console, then it means games will be made for a 16:9 aspect ratio. and if you can stream
games to your controller, i think the controller's screen would have to match what appears on the tv.
-six inches is probably the diagonal measure. if the aspect ratio was 16:9, then that would roughly translate to 5.2in (w) x 2.9in (h).
-the top of a dreamcast controller is actually just about 5.2 inches wide.
super half-assed mockup, but the idea was just to get it about as actual-size as i can get without photoshop:
http://i56.tinypic.com/2vbkcp5.jpg (on top of controller)
http://i56.tinypic.com/2m6tjs4.jpg (in middle of controller)
this is all dependent on the actual game streaming to the controller though.