BDM's Definitive Guide to iPhone 4S 4 3GS iOS 5 Author:Black Dog Media Within the pages of this exhaustive guide to the iPhone 4S, iPhone 4, and iPhone 3GS you will find in-depth features on not only every facet of the hardware but also the heart of the iPhone, the iOS itself. This vital information is broken down into detailed step-bu-step guides to advanced iPhone use, insider tips and tricks, expert app reviews... more » and much more. Our goal is to help you get the most out of your iPhone,whether you use it for work, recreation or to organize your entire life,and with this essential publication we're sure you'll be able to do just that!« less