Iwata Asks: Wii U (Hardware Devs + A look Inside the Wii U hardware)

[JEMC]

There's so much empty space on that tiny PCB. And look at that CPU! It's minuscule.

Also:

Shiota: Yes. The designers were already incredibly familiar with the Wii, so without getting hung up on the two machines' completely different structures, they came up with ideas we would never have thought of. There were times when you would usually just incorporate both the Wii U and Wii circuits, like 1+1. But instead of just adding like that, they adjusted the new parts added to Wii U so they could be used for Wii as well.

There's still hope (small, very small) that WiiU could be able to upscale Wii games to HD resolutions.