RubyCocoa has been around for a while, and here are some projects that are using it:

• PackRat∞, a desktop client for 37signals' Backpack∞ web application.
• FlightGear Mac OS X∞, a Mac version of the FlightGear∞ flight simulator.
• iHate∞, an Utu∞ chat client.
• PatchWorks∞, a GUI for the Darcs∞ source code management system.
• LimeChat for OSX∞, an IRC client.
• bcscan∞, a barcode scanner application.
• Frictionless∞, a to-do list program using the GTD method of from David Allen.
• Facetastic∞, a Facebook client application.
• Chemr∞, an application for reading CHM references.
• Blogo∞, a web-blog editor.

Please edit this page to mention your project, or drop us a message on the rubycocoa-devel∞ mailing list.