Auto-sync in GNOME

I really want to just synchronize two directories on multiple machines. I don’t want to worry about IP addresses and things like that and I don’t want to store my private files “in the cloud”. Has anyone done a cute hack using ssh, avahi and inotify for GNOME? Note: I don’t want to backup a folder like DejaDup wants me to do, I want live multi-master replication. Unison also fails for me, as it currently doesn’t work in Fedora 15, and has to be run manually. Ideas?