Not the console, but the actual controllers. It is a possibility that it will feature HD and 3D.

Some more info:
- Wii U could be outfitted with voice recognition software
- "one or more additional microphones...may be provided on the front and/or back surfaces"
- facial recognition
- controller may be able to recognize facial features
- can be used as a videophone by "exchanging images and sound"
- peripheral examples: "a game-specific controller (gun-shaped controller, etc.) or an input device such as a keyboard"

I don't think HD is needed for 6 inches. Okay, 720p is fine but 1080p is too large to have any effect on the image quality.
3D, hmmm. I'm not even sure how good is it yet.

Seems interesting, I APPROVE.