The following information comes from an interview with Nintendo's Kit Ellis...
- "no comment" response on Pikmin 3 supporting off-TV play
"The Wii U GamePad sort of occupies its own space in that it combines touch controls with more traditional videogame controls. You've got the analogue sticks, the d-pad, the multiple buttons, and the motion control, and the touch screen control as well. It's really its own unique thing, taking all these different forms of input into one device."