Google definitely biased…

[Paulo Pinto via Digitalmars-d]

>> If Google dropped Go tomorrow, there would be immediate 
>> backing for new
>> management of a fork.
>
> Sure, and we would have Go+, GNUGo, FreeGo (discontinued) and 
> whatnot, each having a different philosophy. There would be 
> flame wars on the internet and nobody would know which kind of 
> Go to use.
>

Just like any open language implementation out there.

CRuby vs JRuby vs RubyMotion vs ...
CPython vs Jython vs ...
Clang vs gcc vs msvc vs icc vs aC++ vs xlc vs ....

Or for that matter

Dmd vs ldc vs gdc