According to Mr. Iwata himself, there will be multiple full Wii U games (as in, not just minigame collections and whatnot like Nintendo Land or Wii Party U) will be shown at E3 this year that make very innovative use of the Wii U Gamepad. These are under the guidance of Miyamoto, so you know they're going to be good. XD
I think this is awesome. I can't wait to see what games they are.
Today I only spoke about Mario Kart and Super Smash Brothers For Wii U in terms of Wii U software, however, at the E3 event to be held in June in Los Angeles we will discuss other software as well. Also, at that time, we will introduce multiple games that are designed to introduce players to the value of the Wii U Game Pad by demonstrating playstyles only possible because of it. These titles have been developed by internal teams under the guidance of Mr. Miyamoto (Board Member, General Manager of the Development Division). The software titles that we will show at E3, which make use of the Game Pad, will range from near complete titles to titles that are early in development, but will demonstrate the titles' core appeals. We are preparing multiple software like this for the show.
I think this is awesome. I can't wait to see what games they are.