Neat, Google has a new language called Go. Clever branding, that.
It seems to be Google’s attempt to step into the Java/C# space. Perhaps I don’t know enough about languages to make such an assertion, but the thing that clued me in was its type safety. That seems decidedly untrendy.
Google seems to have stepped over a basic OO concept: inheritance. Smart C# programmers know to use interfaces instead of inheritance, where possible. It’s an important way to keep coupling as loose as possible. (I am an intermediate C# guy, so that means I do it often but not often enough.)
Go only uses interfaces — no inheritance — and it does this by design.