ubuntu : gedit plugin package for Ruby on Rails developers :

32 bit deb package and 64 bit deb package

It includes awesome plugins in gedit editor, you can enable them by doing click on check-box associated with plugin.

follow the steps to enable plugins in gedit :

File menu => Edit => Preferences => Plugins

reference : http://www.ubuntuupdates.org/package/ubuntu-on-rails/oneiric/main/base/gedit-gmate