Any chance you can support Mercurial? There was a highly voted issue that I saw sometime back.
I'd be happy to be proven wrong.
RhodeCode actually supports Git, Mercurial, and Subversion.
There's a big difference between Kallithea and RhodeCode. Kallithea development is stale, and there's not a lot of things going on in this project.
RhodeCode is adding new features constantly, and the project is really active.