[development] no 4-7-0 branch for core yet?

i am trying to checkout a 4-7-0 branch from core for a client. I want him to get all updates to this branch just by cvs up. But that branch does not exist yet AFAICT. Is there some better way to do this. Should we ask Dries and team to create one? I suppose it doesn't exist yet because we haven't opened up HEAD for features. -moshe