"We do not have any specifics to share at this time. However, we are moving ahead with development of Virtual Console for Wii U, and we plan to make it so you can play it on the Wii U GamePad alone." - Nintendo rep
I honestly am not that interested in the VC for Wii U. Unless we can share VC game purchases between Wii/3DS/Wii U, I'm not going to buy those games all over again. I'd love to play classic games on the GamePad screen, but not at another $5 a pop.