Really well-done introduction to iOS, apps and the SDK.
Creating iOS apps is fun and rewarding, and if you're a new developer you might be wondering where to begin. This road map provides the perfect starting point for iOS app development. On your Mac computer, you can create iOS apps that run on iPad, iPhone, and iPod touch. Follow this road map to learn where to get the tools you need, understand the major concepts and best practices, and see where to find more information.
As you proceed through the road map, you will use Xcode and the iOS SDK, Apple’s tools for app development. You will learn the basics of programming with Objective-C, the language that powers all iOS apps and frameworks, and will explore the Cocoa Touch frameworks. You will create a simple iOS app and learn how to test it on a device. Finally, you will learn how to submit an app to the App Store.