DM> you can use external storage to use CAS-based storage, if you really want. Ah, http://en.wikipedia.org/wiki/Content-addressable_storage#Open_Source_Impleme... http://en.wikipedia.org/wiki/Git_(software)#Implementation And while you're at it, he says subversion is for goners, http://www.google.com/search?q=torvalds+subversion+git