But they never really show it. The objective of the advert is to advertise a brand new console. They focused on the Gamepad for 90% of the duration. This Is the first HD Nintendo console and the first step into the new generation of gaming. The many cool features of Wii U have been discussed here in depth, yet they decided to show none of this, instead concentrating on a puzzle involving the Gamepad.
It doesn't make sense. Imagine if the N64 adverts only showed the controller and the fact that it now has an analog stick!
The mainstream won't understand if you give them raw features and specs. I can brag about those against a lot of casual people I know, but they don't understand or care. If I show them the Wii U GamePad they get curious about it.