via BoingBoing (the best part of this post are the comments, some of which I'm including below):
From Pogue's Posts:
This is ugly for all kinds of reasons. Amazon says that this sort of thing is “rare,” but that it can happen at all is unsettling; we’ve been taught to believe that e-books are, you know, just like books, only better. Already, we’ve learned that they’re not really like books, in that once we’re finished reading them, we can’t resell or even donate them. But now we learn that all sales may not even be final.
As one of my readers noted, it’s like Barnes & Noble sneaking into our homes in the middle of the night, taking some books that we’ve been reading off our nightstands, and leaving us a check on the coffee table.
This kind of bullshit will encourage readers to visit Web sites in countries where the copyright has expired on Orwell's books so they can get free un-stealable electronic copies.
see: Some E-Books Are More Equal Than Others