Mondrian is a cross-platform project-manager and editor for the Ruby language.
But Mondrian is no longer being developed. The programmers have moved on, the libraries are well out of date and the spammers have taken over the forums.
I want to say thank you so much to those who contributed time and code, and also to everybody who wrote in for no other reason than to provide encouragement or to say something nice. You have all helped make Mondrian a tremendously positive experience.
You can still download Mondrian versions here; however, keep in mind that you will need to install an old version of fxruby (1.4 or 1.6, depending).