CONCEPT - Nintendo HDS

This right here is how I envision the next Nintendo handheld console.
As you can see, this type of thing isn't really my forte -_-

Basically it's a mix of the current 3DS XL and the Wii U Gamepad. It reads both HDS games and 3DS (maybe even DS games, though usually Nintendo limits retrocompatibility to 1 gen), AND also work as a Gamepad for the Wii U and for its successor.

Obviously this is not complete at all, as it's still missing stuff like the mic or proper start/select/etc. buttons, but you get the picture.
Well, what do you think?