I just tested app-pda/synce-gvfs-0.3 in Gentoo with gnome-base/gvfs-1.2.3. This is the first ebuild for the SynCE 0.14 release (announcement here), and it's available in the SynCE overlay.
synce-gvfs works without upgrading other SynCE components to 0.14. For me, it fixes a gvfs crash when trying to copy files off your device.
Comments welcome :) The rest of SynCE 0.14 will happen eventually :)