Ruby plug-in for Eclipse

I recently found out there is a Ruby plug-in for the Eclipse IDE: The "Ruby Development Tool."

Quick install instructions:

1. Start up Eclipse.
2. Help > Software Updates > Find and Install...
3. Select "Search for new features to install"
4. Click "Next"
5. Click "New Remote Site..."
6. Enter the URL of stable release branch is: http://updatesite.rubypeople.org/release
7. Click "OK"
8. Click "Finish"

Ruby Development Tool (RDT) web site: http://rubyeclipse.sourceforge.net/index.rdt.html

Article on using RDT: http://www-128.ibm.com/developerworks/opensource/library/os-rubyeclipse/