Hello. I have seen one unique feature on github, regarding to project hosting — projects are unique for each projects, so each "user" can fork project without changing name - nice way to create own without to wait for original project's owner permission.
I failed to find any info, regarding to sourceforge or savane, about something more than just requesting creation of branch and access to it in bounds of orignal project or simple sending of patches. Launchpad is not considered because supports only bzr, and even with it i would still need some hoating for git, and repo.or.cz, where i made an account to contribute to ladish project, doesn't have such feature.
