The Authors Guild, for their part, has issued this statement about the situation which, on first reading, does make a certain amount of sense. As a librarian I’m more concerned about the overarching issues of digital rights management and the notion that even though you’ve nominally purchased a book (perhaps at a loss for Amazon) you still have an item that is, in part, controlled by its creator who can alter the item according to the license terms you agreed to. A little more about this on Slashdot.