Everything you need to know to design, code, and build amazing apps Xcode 4 is Apple's newest version of the popular development suite for creating bleeding-edge OS X and iOS apps. Written by an experienced developer and Apple-focused journalist, this book not only covers developing for OS X but also for the entire family of iOS devices, including the iPhone , iPad, and iPod touch. You'll explore the newest tools for compiling, debugging, and finding and fixing common code errors so that you can look forward to improved, smooth-running code that is developed more efficiently than ever. Takes you step-by-step through the process of developing OS X and iOS applications using Xcode 4 Examines the benefits of Xcode 4, Apple's updated, free, object oriented programming environment Helps you tame the complex Xcode environment so you can develop amazing apps This book gets you up to speed on all the remarkable new features and redesigned user interface of Xcode 4 so you can get started creating phenomenal apps today.