I just read that it would be possible, though quite complicated, to
restore a Wii NAND backup from [Wii A] to [Wii B].
Now, I have a question about this. If this is possible, does that mean - theoretically - that you could make a NAND backup from a Wii which is fresh out of the shipping-box (except you've installed Bootmii and
only Bootmii on it), and then modify this NAND backup for any Wii of your choice?
Basically, what I'm aiming at is: would it be possible to create a "back to factory settings NAND backup" for a Wii that has been screwed around with a lot WAY before Bootmii came to be? I don't really know why anyone would want to do this, but just the thought of the possibility to restore a Wii back to the way it comes when shipped (before installing any cIOS, unofficial channels, non-licensed titles, homebrew or anything else) is quite cool.
So, maybe that could be a service as well; sending people a fresh NAND backup which will make their Wii be just as if though they bought it today.