What is interesting is leaving the expressiveness behind of a language like Ruby or Python, for a bit of AOT compilation to native code.

I bet if something like RubyMotion wasn't a commercial product, the reality would be quite different.

As a Scala/Java dev, I'd be willing to explore Go not because it seems like a better language (I have no opinion), but because I'd hope there's less design pattern/enterprise-overengineering approach among devs. Even in Scala, which is super-flexible, people tend to structure code like they do in Java - everything is decomposed into tiny classes to the point of absurd. One of the reasons is that the mocking frameworks expect to mock classes, so every bit of functionality needs to be it's own separate class, just like in Java...

It's the Never Java crowd who I just don't get. Java is almost always the most practical answer. And if you don't like Java, then use C#.

Im one of those. Anytime Python / Django doesnt cut it I use Go. Works very well.