The aim of this book is definitely for those skeptics business users who just jumped from the Blackberry on the iPhone train, or they are thinking about it. Being an advanced user myself, I probably couldn't fully appreciate it, but I am sure that a not too tech savvy person who's more interested in getting the exchange service to work, will love this book. I will definitely lend this book to some of my friends who are still dubious in switching their company from a BB environment to an iPhone one. The only negative point (but being a printed book there's not a lot to do about it) is the third-party apps section, that because of the nature of the iTunes store. Even if only a smaller portion are quality business related apps, every day about 400 new apps appear in the Apps Store, so it's impossible to be always updated on the new apps and softwares.