macruby-docs.user.js - A userscript that adds MacRuby/RubyMotion syntax to Apple's Objective-C/Cocoa docs.
After installing and visiting apple docs (like NSString), you should be able to see "MacRuby" sections like this one within the documenation:
This project uses ruby to get a web server setup for development. You also need to make sure you have node and coffee-script installed.
git clone git@github.com:joakimk/macruby-docs-js.git
cd macruby-docs-js
# [sudo] gem install bundler
bundle
rake
Open run_specs.html to run the specs.
Install the extension using tools/macruby-docs-dev.user.js to use the local development version.