I contributed a handful of articles and served as technical editor on O’Reilly’s iPod and iTunes Hacks by Hadley Stern. I’ve read all the way through the rough copies of the book, and it’s packed with hackery goodness. Here’s a link to O’Reilly’s page for the book, which also links to some sample hacks, including this hack in pdf format by yours truly. Go preorder a copy already!
Thanks for the work, Hadley! Great working with you!