I could never convince the principals to call the FreeBSD project "Radio
Free Berkeley." As for duplication of effort, I'm not sure anybody cared.
Certainly RMS didn't give a rats ass.
I suspect some of the stuff came from sources outside of both projects, like
stuff we did at BRL (although, those using that tape need to be careful,
most of that stuff came right out of the system V sources, hacked over to
work on BSD).