By their very nature, decentralized processing systems have exponential complexity, so this is very welcome to see released. But oh how I hate having to go back into Java :)
The gist is: Storm topologies are just Thrift structures, and Storm can execute processing components in any language by communicating with subprocesses over a simple protocol based on JSON messages over stdin/stdout. Storm has adapters implementing this protocol for Ruby and Python, and it's easy to make a new adapter for any other language. The adapter libraries are ~100 lines of code and have no dependencies other than JSON.
