I administer a small work group & a smaller computer lab.
We use the Zimbra compatibility suite to facilitate most of our collaboration.
The Briefcase has proven to be extremely valuable. Users often work from within Zimbra outside of our lab, but only if they remember to upload their files before they leave. Users often WebDAV their Zimbra accounts from their MacBook's or iPad.
I am hoping to create an automatic sync for our users.
The goal is to have a fast, file system level access, to their Zimbra Briefcase while in my lab and online collaboration in Zimbra.
User (Mac OS X Client) ---AFP--> User's Network Storage (OS X Server) ( <---WebDAV---> User's Briefcase