Our latest book, Learning Swift, is now available! The book will cover everything you need to learn Swift, for iOS, OS X, watchOS, and tvOS. Grab the early release (all updates to final release included) (via O'Reilly Media). Or pre-order it on Amazon! We'll be covering iOS 9.x, Swift 2.0/2.1, and the iPad Pro as well. This is probably the best book we've written yet!
We build amazing iPhone and iPad apps. We recently built ABC Play School Play Time and Art Maker for iPad, and recently wrote Learning Cocoa with Objective-C Fourth Edition and the iOS Game Development Cookbook for O'Reilly. This is our blog.