How to use the Eclipse IDE to develop Ruby applications
If RADRails doesn't capture your fancy and you'd rather use regular Eclipse as your Ruby IDE, Tabrez Iqbal has a great walkthrough of setting up Eclipse and using it to develop Ruby applications along with lots of screenshots and useful information.
August 21st, 2006 at 12:41 pm
What about using Apple's "Xcode IDE for Ruby":http://richkilmer.blogs.com/ether/2004/03/using_xcode_to_.html ?