cocos2d for iPhone is a framework for building 2D games, demos, and other graphical/interactive applications. It is based on the cocos2d design: it uses the same API, but instead of using python it uses objective-c.

Main features: * Platforms: iOS and Mac * Scene management * Transitions between scenes * Sprites * Actions * Basic menus and buttons * Integrated physics engine * Particle system * Text rendering support * Texture Atlas support * Tile Map support * Touch/Accelerometer support * Portrait and Landscape mode * Integrated Pause/Resume * Supports PVR and PVRTC images * Language: objective-c * Open Source: Compatible with open and closed source projects * OpenGL 1.5 and OpenGL ES 1.1 based