Welcome to the new state of the art development for iOS, with the radically overhauled Xcode 4 toolchain and iOS 5 SDK. With this book you'll accelerate your development for iPhone, iPad and iPod Touch. You will learn the new tools like Storyboards, practice on new APIs like the Twitter framework and use the latest features of the Objective-C 2.0 programming language. Since the iPhone's launch in 2008, the iOS platform has added two new device families, thousands of new APIs, new tools and programming practices, and hundreds of thousands of new apps. iOS SDK Development is the second edition of the bestselling iPhone SDK Development, completely rewritten from the ground up to cover iOS 5's new features. You'll get hands-on experience working with Ob...