via Ruby Weekly: Joybox combines the most popular and widely used 2D game engine for iOS, Cocos2D, folds in the amazing Box2D physics engine, and then wraps them up into a clean Ruby API that will make game development faster and more enjoyable for both beginners and experts alike.

I've been following the development of RubyMotion with interest; the idea of side-stepping the XCode workflow in flavour of a CLI tool set I already know and love is really appealing, so this wrapper for Coco2D is a really cool development.

The licensing fee for RubyMotion is a bit of a barrier but the friendliness of Ruby and the interactive console feature would probably make for a good teaching tool.