Ry’s Objective-C Tutorial | RyPress This tutorial is the place to learn the Objective-C programming language. It’s designed to serve as both a concise quick-reference and a comprehensive introduction for newcomers to the language.
Developing Objective-C apps for Android using Mac OS X | ivucica blog … here is something that will help you understand the complexities of the design of NDK, and how to combine all this with the Objective-C compiler. PDF: Developing Objective-C apps for Android using Mac OS X
iPhone SDK Examples “Just show me how to do it!” This site is meant for the relatively new iPhone Developer who just wants simple examples to common tasks. It is meant as a starting point. Please take the time to read the documentation and understand the SDK in depth.