Holding that "leak" version of the controller looks like it would be pretty hard without the grips shown in the patent document.
I believe the black circle isn't the camera, but rather the HOME Button, and the black rectangle is the camera.Now how about what's supposedly the bottom of the controller. I believe that's a camera, which might work as Nintendo's DSi had one on the hinge between the two screens. But what is that other black rectangular part? It almost looks like what's you'd find on the tip of a Wii remote or the top of the Gamepad next to the audio port, used for IR signals. If that is what it is, then why is it on the bottom?
I believe the black circle isn't the camera, but rather the HOME Button, and the black rectangle is the camera.