The hidden secrets of iOS4 unveiled Do you know what amazing things you can do with the world's most innovative mobile operating system? Grab iOS 4 Secrets and get ready to be blown away Tap on the Check List in it to know what awesome new features you get to enjoy when updated to iOS4nnDiscover the Secrets of the iPhone and get up to speed quickly with this straight forward guide, full of practical stepbystep visual instructions. Full color screen shots help you learn visually and quickly become productive.nn Covers iPhone 4, 3GS 3Gn Includes updated Tips for iOS4nnDo yo know how all the tips and tricks of our device, like how to email more effectively, save juice, browse better?nDo you also know that if you've lost your iPhone, you can even get it back?nLooking to get the most of your iPhone and iPod touch? nThere are SO MUCH about your iPhone that you do NOT know