i suspect its a Share button. There was a rumor that the system had one a few months before we finally saw what it was. It could also be the return of the TV button. Don't know about you guys, but I've gotten a ton of use out of using my Wii U gamepad as a universal remote. I recently lost my remote somewhere in my room, and can't find it, fortunately the Gamepad has been picking up the slack and working like a champ.