An Apple patent granted on 7 March details a system allowing customers to resell iTunes and iBooks content to other users at a reduced price, or to loan the content temporarily for free. Such a system could pave the way for second hand content being made available on iTunes for a discounted price."(Note: Beware the auto-playing video ad, with sound.)

http://apple.slashdot.org/story/13/0...loaning-system