Originally Posted by slowfax
If he UNregisters it, can I then use the bare device without any registration?
I would not suggest bypassing the registration. Just put in an e-mail and password and no credit card and you're fine! No address, no personal information at all needed. Just an e-mail. Doesn't even have to be your "real" e-mail. I have set up an e-mail adress that I use for all my family/friends when they get a new Nook. I'm in Sweden, by the way. Sideload everything!