Git is actually what I was referring to. If there was say a packaging model that Linux kernel decided to support for say distribution of kernel modules, I think I could see it becoming the defacto standard.

I didn't really mean that he would from on high dictate what would be used. And honestly, if something like that did happen, I bet I'd be unhappy. Git is a huge step forward, but it is one of the most complex SCM's in existence, for example.