All of these compilers or JIT interpreters are implemented in C or C++ (which are open languages with ISO standards). Technically, if I'm not mistaken, Go is (

All of these compilers or JIT interpreters are implemented in C or C++ (which are open languages with ISO standards). Technically, if I'm not mistaken, Go is (currently!) implemented in Plan 9 C, which is not the same thing as ISO C. Also, Go is very different from .NET and Java. For starters, it was published in source pretty soon after it had been announced. You have your freedom right there.