http://www.youtube.com/watch?v=dN8813T4qvs

At around 0.17 you can see the gamepad placed on the ground, just as we saw in the original Wii U trailer. The remaining question is if we will see the same will the baseball game. 

The original Wii U trailer for reference: http://www.youtube.com/watch?v=4e3qaPg_keg

Cool.

I hope they'll upgrade the baseball one with the gamepad controlls we saw in the original Wii U trailer. The baseball game felt like the most shallow one of them all. However the gamepad baseball game looks, well, to put it simply, good.

Yep that's what I suspected! Explains why Tennis and Bowling came out before the others, because they need no adjustments for Gamepad support.

Great news! Give me more reasons to use the GamePad, Nintendo!

I'm wondering if they have anything they have anything they could add on boxing with the gamepad.

Awesome now there's another reason to use the gamepad

That was already known.
Anyway, it is cool that they use the GamePad like in the Demo 2 Years ago. But I am very excited for boxing (online, baby)

:O When did they reveal it? I haven't seen it before.

Said it in Iwata Asks and the Video, where Iwata played Tennis ^^