I've picked up "iPhone In Action" to help learn how to develop for the iPhone using the SDK. It provides a good introduction to a lot of topics but can be a bit tricky for developers like myself who are new to Objective C. Topics are generally introduced only once so you have to go back quite a bit to refresh your memory on how certain things are done. Though it would have made the book a LOT bigger, it would have been helpful to have complete examples. As a long time C and C++ developer, I'm still struggling with the Objective C syntax as it relates to methods and their arguments, especially when dealing with class methods. The description of views vs. controllers vs. delegates could be better as well.
Does anyone have any other recommended reading for iPhone development or Objective C in general?