[whpalmer4]

They do...the first step is to import from the common WebDAV or iDisk volume, and the last step is to save it back. That's no different than telling the operator to mount the tapes containing your dataset, or loading the file into your address space off of a network attached storage disk, or telling TextEdit to load from your local disk. No one else can see the most recent bits until you write them back to the backing store, and if someone else makes a change while you're in the process of doing so, someone will have to put the pieces back together again. So, I oversimplified a bit in my first sentence: the first step is to make sure no one else is editing the file, then import. You'll have a long wait if you're expecting Omni to automate that for you, much less let multiple writers work on the file simultaneously!