[boost] [git] Boost.Build location

I am wondering what will be the location of Boost.Build after the git switch. It seems to be part of http://github.com/boost-lib/boost right now. Maybe, it would be best to have separate git repository for Boost.Build? In particular, that would allow to fork just Boost.Build, which is important given git's inability to handle partial checkouts. It would also allow giving push access for Boost.Build to other people, without also giving access to superproject. Comments? Thanks, Volodya