I'm looking to buy the Wii U, and one of the major draws of it for me is transferring the virtual console games from a previous Wii. I've actually given the Wii to a relative, so I'd like to know what is involved with the process of transferring virtual console games from the Wii to the Wii u.
Do I need the physical Wii to do so? Do I only need information about the Wii (e.g. serial number)? Or would control of my nintendo store account be enough to re-download the virtual console games?