I do agree that Ruby has passed this test since there are quite a few Ruby projects out there, a ton of startups and even some big names showing interest in it.

I do agree that Ruby has passed this test since there are quite a few Ruby projects out there, a ton of startups and even some big names showing interest in it. There are webhosts out there which specialize in Ruby deployments which is a big win if you see Ruby as a web language. However, I would disagree on the comparison with Python which has a much larger community base than Ruby. Rails may be more popular than Django but Python has even penetrated desktop apps like Hg, Bazaar, Meld etc. which is one area Ruby is still to affect significantly. But having said that, Scala, Clojure and especially Go are not nearly as popular as Ruby or Python.