Subversion: is it possible to commit local revisions without pushing them, and push them at a later date - or is the lack of this feature why it\'s called \"centralized\" ?<
You could do such a thing so if you interface the SVN Server with a GIT or Mercurial Bridge. Since GIT and Mercurial are able to do local Commits you could then use them like that. Maybe check out git-svn or something similiar (I remember there being a bazaar-svn but not sure).
Much of the above has become somewhat obsolete, and since this question comes up as a hit in a google search for "svn local commit" here's an update:
Consider using the package "git-svn" (along with "git-gui" if you don't know git) to make local commits both possible and easy, with full remote SVN integration. A decent overview/tutorial/use-case is here. I've just started using this process with Sourceforge projects, so I can't yet report any problems. Be sure to get the Authors file right!
EDIT: Updated link. Thanks, hdl!