on 24 October 2009
Its important to note that this book wont teach you the basics of iphone development and is really intended as an ideas book which has good examples of how existing sucessful apps got around problems when they were first developing. I found that some chapters went into more detail than others but overall it was a really good read. My favourite chapter was about "routsey" which covered alot of advanced topics and features, but which was explained in a very practical way.
I would recommend that you first read Apress's Beginning Iphone development and then buy this book as a followup or companion read.