From the ruby-lang mailing list:
I just stumbled across some IDE's I never even knew about:
I know that there are others out there, but these are what I found
first. What's remarkable here is the install process for these IDE's is
quite different from what I'm (somewhat) familiar with: Netbeans and
These IDE's are distributed either by gem or through the browser. Quite
Haven't put the author's name for privacy reasons.