Basically, Amazon one-upped Barnes & Noble's Read In-Store feature that allows Nook customers to "read NOOK Books FREE for up to one hour per day" in any of their 700+ stores, and put the exact same feature in every Kindle customer's living room via 11,000+ public libraries, without the physical and timing limitations.
The public library is one of the fundamental pillars of our peculiar flavor of democracy, and yet, recent events in both political and publishing circles suggest that our commitment to them is wavering. And there's certainly no shortage of opinions about their place in the "digital future," some optimistic, but most some ignorant variation on "Who needs libraries when we have Kindles, Netflix and Wikipedia?"
I find it somewhat ironic that, at the same time publishers are scrambling to fill ill-advised budget gaps left by their blind co-dependence on Borders, HarperCollins decides to play hardball with the one channel that offers the maximum combination of discoverability and NON-RETURNABILITY.