Haven't heard about WebDAV and related HTTP extensions here for some time. I guess static web space management through the webdav protocol is below the average HNer who rather wants "web apps" for reasons of financial wellbeing ;) Interestingly, the history of versioning of static web "resources" through webdav (Delta/V [1]) is strongly connected to subversion (svn), which as a SCM has long made way for git, but kindof lives on in mod_dav_svn.