Ever since I read Hackers: Heroes of the Computer Revolution I have been hooked on Steven Levy. This man is terrific at humanizing the people behind technology. I loved Insanely Great, his story about the origins of the Macintosh, and his current book about the iPod revolution is great as well. Here's an interesting factoid: the book was designed with random "chapters" in order to simulate the shuffle function of the iPod.
If you love your iPod or even if you are just curious about what all the fuss is about iPods, you'll probably enjoy this interesting and well-written book.