So, you want to write iPhone, iPod touch, and iPad applications? Well, we can’t say that we blame you. iOS—the core software of all of these devices—is an exciting platform that has been seeing explosive growth since it first came out in 2007. The rise of the mobile software platform means that people are using software everywhere they go. With the release of iOS 8, Xcode 6, and the latest incarnation of the iOS software development kit (SDK), things have only gotten better and more interesting.