Nothing. My first thought was "what if Google writes their own operating system based on Go?".

It may sound silly but some are already hacking around this idea, as we can see in this thread [0].

* https://codereview.appspot.com/3996047/

* http://gofy.cat-v.org/

So, why not?

[0] https://groups.google.com/forum/?fromgroups=#!topic/golang-n...