After a long period with no free time to work on it, I'm finally wanting to get started with iPhone programming. I'm fairly experienced with Cocoa programming on the Mac (I have a shipping shareware app that has been on sale for some time) so I definitely don't need a book that goes through the basics of Objective-C. My favorite books for Cocoa on the Mac are/were the standard Cocoa Progamming for Mac OS X by Aaron Hillegass and Progamming in Objective-C by Stephen Kochan. What do people think are the best books for learning Cocoa Touch programming? Something like Hillegass' book (which basically assumes Objective-C proficiency) but for iPhone development would be perfect.