"I see little evidence that many people are actually using them yet." - My experience has been different , even in large Enterprise Java Shops you now have a sm

"I see little evidence that many people are actually using them yet." - My experience has been different , even in large Enterprise Java Shops you now have a smattering of different languages on the JVM , albeit all hidden away. This is primarily because the new languages all come as jar files so taking a cursory glance the tendency is to say - oh that's another Java library , look a little deeper and you find Groovy,Beanshell,JRuby, AspectJ,Scala, Clojure et all, the main scaffolding is still in Java but the interesting parts are being written in other languages.