Take MobiPocket or BBeB books for example... They are tied to some sort of PID that's tied to your computer and/or your reading device(s). Now if you break the DRM and find it's legal to do so via the exceptions in the DMCA (in the USA), you have a legally DRM free book. Can this DRM free ebook then be sold to someone else?
One of the issues with ebooks is ebay. I've seen a lot of ebooks illegally being sold. I do read Star Trek books and I've seen ebooks for sale that included some ebooks that officially have never been released electronically.
Another question I have .. is it legal to take books from PG, convert them to some other format and sell them? I've just found an auction on ebay for the Dr. Thorndyke books in Acrobat format. In fact, this idiot seems to be selling a LOT of PG books.
http://stores.ebay.com/NicheTouche_W...QQftidZ2QQtZkm