Hitchhiker's Guide to the Galaxy
Through Audible.com, I downloaded the HHG2G on my thumb-sized muVo mp3 player - very good, and somehow appropriate having the Guide (well, a book about it, read by the author) on a portable electronic device. Made me wish for a Vogon space ship to hitchhike on. And kind of nice to be listening to this book at the same time the asteroid named for Douglas Adams was announced.
Fun to read, or listen to, this book really is unique. Not pure spoof, it really is quite a decent SF story, albeit a very lighthearted one. I think I'll get the next one for my next subscription.