cocos2d for iPhone is a framework for building 2D games, demos, and other graphical/interactive applications.
http://www.cocos2d-iphone.org/
http://code.google.com/p/cocos2d-iphone/
以下是教程：
http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:index
http://www.cocoachina.com/bbs/read.php?tid-15554.html
http://www.bit-101.com/blog/?p=2115
iPhone Developer Program:http://developer.apple.com/programs/iphone/
官方视频教程:http://developer.apple.com/iphone/index.action
31天学会iPhone开发：http://www.ezshine.cn/blog/index.php/archives/154
Learn Objective-C：http://cocoadevcentral.com/d/learn_objectivec/
斯坦福iPhone编程课程iPhone Application Programming:http://itunes.stanford.edu/
斯坦福大学公开课（部分翻译）：http://v.163.com/special/opencourse/iphonekaifa.html
西蒙iphone-OpenGL ES 教程:http://www.cocoachina.com/bbs/read.php?tid-7086.html
Unity3D:http://unity3d.com/
Cocoa苹果开发中文站:http://www.cocoachina.com/