Since publishers are so concerned with the “perpetuity of lending and simultaneity of availability” of their ebooks, I have to wonder if libraries shouldn’t just help them out and hit the STOP button themselves? Stop buying ebooks across the board, at any price, under any terms.
Amazon has always understood that readers are the most relevant market and that's why they're in the position of power they're currently enjoying. Do they wield their big stick aggressively? Definitely. And so did B&N and Borders before them, and presumably whomever the boogeyman was prior to them were guilty of the same thing.
If you're an author who has already been shook and sold your soul and firstborn to Jeff Bezos, I can see this seeming like a good short-term deal, but the potential repercussions are huge.
Much like Google didn't disintermediate big ad agencies via AdWords, nor TV networks or Hollywood studios via YouTube, but instead provided new channels for those who had no need for the Super Bowl, Amazon has done the same for authors who are better served with a scalpel than a mallet.
It reminds me of 2003, the year I started blogging, and how some people were able to attract large audiences for their writing, and the mainstream media scoffed that they would ever be taken seriously. Fast-forward, many of those early bloggers are now considered "real" journalists, some because they went to work for traditional media brands, others because they attracted a significant enough audience on their own that they couldn't be ignored.