But the most important thing for gamers is to see how that structure can be incorporated into gameplay, and Iwata introduces a trailer of Miyamoto offering insight on the hardware.
Miyamoto said he's looking forward to new styles of play, and adds there won't be a shortage of ideas on how to use the system.
He stresses repeatedly that there will be numerous ways to play games on Wii U.
Miyamoto explaining the benefits of the Wii U.
New smash bros title announced for both 3DS & Wii U
Iwata said new ideas are popping up one after another. A few months ago, he explained the concept of Wii U to Kid Icarus designer Masahiro Sakurai, and they discussed if his next game should be for 3DS or Wii U.
His idea was to make a new Smash Bros. for both systems, which draws a large cheer. The games will work together on both platforms "in some fashion," Iwata says.
A new tech demo for the Wii U.
An high-definition trailer runs of a bird flying around a Japanese temple. Trees bloom, soft music plays, and the bird carries a flower in its beak, dropping it over a pond where fish dart around in the water.
The trailer ends, and Fils-Aime talks about how the new controller could change things.
He talks about a conceptual idea called New Super Mario Bros. Mii, where players' Miis play alongside Mario. There's also Shield Pose, where players use the controller like a shield to protect themselves from pirate arrows.
Chase Mii.
Next is Chase Mii, where the player with the new controller gets a birds-eye view on the four Wii Remote users trying to catch them. That same idea was used for a new kind of shooter, with Wii Remote users sharing a splitscreen on the TV as they try to shoot down a UFO. The player with the new controller is the UFO, trying to take out the planetary defenses.
Fils-Aime stresses they are all just prototypes, not actual games. However, he said Traveller's Tales will bring Lego City Stories to Wii U and 3DS.
Lego City Stories for Wii U.
It appears to be an open-world take on the Lego games. It's time for another montage, with various publishers talking about how excited they are for the system.
5th Cell's Jeremiah Slazcka, Irrational's Ken Levine, EA Sports' Peter Moore, Disney's Warren Spector, EA's Frank Gibeau, THQ's Danny Bilson, and more talk about it.
Ken Levine is bringing a new game to the Wii U.