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JVM languages would probably top such lists in coming years.

Think JRuby, Jython, Clojure,Javascript...etc and of course Java.

For anyone interested in trying these out, checkout HiveMind (crudzilla.com), I am the developer.

What's the reason to use HiveMind over another solution?

HiveMind is for building web apps, as opposed to being just a generic IDE.

You can read the docs or just download and try it out...there are a lot of interesting ideas implemented on the platform.