Page currently being edited by another user notification? Any thoughts on how I could let  users know when they go to a page in the backend that/if another user is currently editing that page? I don't need it to lock editing, just to present a notice that it's being looked at/edited by someone else﻿
It would definitely have to be a plugin, but I'm not sure the right events are available for a plugin to pull it off right now.

Seems like there would need to be at least two that need to be created.  Some onDisplayEntry event that gets fired as soon as an entry page is viewed and another onEditEntry event that gets fired over AJAX as soon as any field value changes.