There was one called rush, by Adam Wiggins, co-founder of Heroku, IIRC. I had tried it out a bit after it first came out. Just now did a Google search for "ruby

There was one called rush, by Adam Wiggins, co-founder of Heroku, IIRC. I had tried it out a bit after it first came out. Just now did a Google search for "ruby shell rush" - without the quotes, and it found it - first result, though the others about it look interesting too. Not sure if the project is active though.