Stanford iPhone App Programming lecture 13
Lecture 13 from the Stanford University iPhone Application Programming class was hosted by Alan Cannistraro. He covered exceptions and debugging, using the UISearchBar, notifications, and key value coding.
I did not know you could set a breakpoint on objc_exception_throw, this seems like an awesome way to try and track down exactly where exceptions are happening in the code. Also, some of the key value coding and key value observing items he covered were pretty interesting and relevant.