There are already two notable free interfaces for hosting public repos, repo.or.cz (which is acceptable but kinda slow), and github.com (which has a lot of neat new features involving project collaboration).
Although GitHub is really awesome, it's only free now because it's in beta... once they finish the site, it'll have a fee. On the other hand, they have talked about waiving that for open source stuff. Also, the beta is invite-only.
I was thinking of this while watching the video - when Linus talks about smartness is a good indicator of someone to pull from - that the minimum level of smartness to participate becomes being able to setup a public repo.
This is somewhat exclusionary but I'm sure there are worse litmus tests on who's code to trust.