New audio book device

Just heard from JAB (who keeps me abreast of new technology) about a fascinating device. Basically, it's a throwaway audio book. Details at http://www.gizmodo.com/gadgets/portable-media/playaway-audiobooks-166746.php. The price is a bit high at the moment, but when it drops (as it undoubtedly will) this could become a whole new publishing arena.