Nintendo has revealed at CES 2012 that the Wii U tablet is capable of outputting a panorama view, based on what's being displayed on the television:
The outcome looks choppy, but keep in mind that the tech demo looks super realistic, and wasn't optimized before the show. The Wii U could end up being the multiplayer platform of choice because of that feature! Assuming Sony and Microsoft aren't going to rip-off Nintendo (again) for their next consoles...