Roy Blount Jr. explains the Authors Guild’s complaint — which has angered the National Federation of the Blind — about the Kindle 2’s text-to-speech function. At issue is payment for audio rights to the books. “[P]ublishers, authors and American copyright laws have long provided for free audio availability to the blind and the guild is all for technologies that expand that availability. … But that doesn’t mean Amazon should be able, without copyright-holders’ participation, to pass that service on to everyone.”