It’s starting to happen. There’s a long way to go between successfully executing a bit of Rails and actually making the sucker run usefully, as the JRuby guys will tell you. But speaking of JRuby, there are some eerie similarities: a language-platform project that was promising, then drifting, now revitalized. The ecosystem gets more interesting all the time. [Update:] Frank Wierzbicki reports that Jython is rockin’ & rollin’, it’s not just Django. Good stuff!