The ultimate hands-on guide to building iPad applications for iOS 4 - by best-selling iOS/iPhone development author Erica Sadun ••Includes iPad-specific coverage developers can't find anywhere else.•Walks through building Universal Applications that run on both the iPhone and iPad.•Covers SplitView Controllers, Popovers, working with multiple gestures, document sharing, and much more•Provides extensive downloadable code examples using Xcode 4, Apple's nextgeneration development environment. Apple sold 3,000,000+ iPads within the first 80 days of its release. Attracted by its breakthrough success, thousands of iPhone developers are flocking to the iPad, seeking reliable, practical information on its unique programming challenges and opportunities. Erica Sadun's The iPad Developer's Cookbook brings together everything they need to write high-performance iPad apps that make the most of Apple's hot new platform. Targeted at existing iPhone developers who already know the basics (including those who've read Sadun's bestselling (The iPhone Developer's Cookbook ), this new book focuses on leveraging the iPad's unique features and iOS 4's iPad-specific capabilities. Following her proven 'recipe' format, Sadun teaches powerful techniques through cookbook-style code examples that go far beyond 'cut and-paste' to illuminate both the 'how' and 'why' of effective iPad programming. Coverage includes: iPad App design; split view controllers; popovers; iPad documents; gestures; working with multiple screens; building universal Apps that also run on iPod; conditional coding, and more. All examples are presented using Xcode 4, the next-generation integrated development environment for developing iPhone, iPad, and Mac applications; and can be downloaded at either GitHub or Informit.com.