My hesitation about using Go would be having to forgo all of the ecosystem built up around a more mature language. I haven't coded much in Ruby (I gravitated t

My hesitation about using Go would be having to forgo all of the ecosystem built up around a more mature language. I haven't coded much in Ruby (I gravitated to Python), however I would assume that Ruby has a much richer set of libraries than what is available for Go. I use interpreted languages because of their inherent ability to be able to rapidly prototype applications. If Go's ecosystem doesn't have libraries for things I need, I'm going to be extremely reluctant to switch, regardless of any performance gains, no matter how large they are. Of course this will only improve with time if other people switch first and decide to fill in missing libraries. From looking at the Go package list at http://golang.org/pkg/ http://golang.org/pkg/ it looks like they've got a reasonable base, and hopefully it will continue to grow.