COCOS2D for iPhone Games
COCOS2D is a free, open-source framework for building 2D iPhone games.
[Game Developer's Magazine - October 2009]
Created by the team at Saps Media, COCOS2D has been used as the foundation for over one hundred iPhone games ranging from Stick Wars to Fishing Frenzy.
The core of what Cocos2d offers is a rendering and imaging loading solution that uses OpenGLES, which is a flexible and powerful method for getting whatever graphics and animation you want onto the iPhone fast.