Cocoa wrappers and helpers for RubyMotion (Ruby for iOS and OS X) - Making Cocoa APIs more Ruby like, one API at a time. Fork away and send your pull requests
Some sugar for your cocoa. RubyMotion helpers.
IB Outlets for rubymotion
Commonly useful extensions to the standard library for RubyMotion
Cocos2D & Box2D Wrapper for Ruby Motion - Currently out of date an unmaintained :-(
BubbleWrap's (now deprecated) HTTP library
What should we use this for??