So I think it is kind of silly I can quick boot wii mode by holding B but it forces me to make a menu selection on the TV in order to function.
So if I want to play wii in off tv mode I have to ask to switch the TV input or else blindly pont the wiimote at the screen and hope I get lucky.
Even having to use a controller this a very cool feature for people like me who have the Wii U hooked up to main TV in the living room that is shared among the family. Don't get me wrong, supporting the gamepad controls as at least a classic controller would make it tons better but this is still a great feature. I have not hacked my vWii yet but this is really making me want to.