Call me naive, but if you want to keep playing wii and GC backups, homebrew, emulators, etc, and none of the VC/Wiiware is playable on the WiiU gamepad, why would one actually want to transfer these things?
Now if you're being legit and never do any of the above stuff, then I totally get the merrit. But for me, I'm struggling to find a reason that once I get my WiiU, why I would want to transfer anything from my Wii to the WiiU, I'm definitely gonna be keeping my Wii once I get my WiiU, unless somehow we do find a way to exploit the thing, but I honestly just don't see that happening, at least not anytime soon.