Tonight I purchased Going Wireless by Jaclyn Easton from Audible.com. It sounds fascinating, although I'm more in a music phase at the moment. However, I will soon go back to listening to books in the car, and this will be my first go. (I'm sorry I can't link directly to it, but Audible uses session IDs and Javascript so my links never work.) If you're at all interested in testing Audible's service, this might be a good title for you to try!