Sitecore Mobile SDK is a framework that is designed to help the developer produce iOS based applications that use and serve content that is managed by Sitecore. This should enable you to rapidly develop iPhone applications utilizing the full phone features (camera, location, accelerometer and gestures for example). The applications can then request content from Sitecore efficiently and securely.
Details on what is contained in the Sitecore package and the iOS project template and libraries can be found below.
The framework comes with a sample project that makes it very easy to start writing apps, along with comprehensive developer documentation, and several sample projects, including the iPhone/iPad application based on the Nicam demonstration site.