I use the UMCal feature quite a bit to check on the availability of others for calls, conferences and even carpooling. It's a nice feature, WHEN users keep their calendars current on it.
I like the netfiles, but am wondering this -- can full directories be loaded or do we have to load file by file? If it has to be file by file, it inhibits moving some history I'd like to have available there.
One more thing on productivity -- it sure would be nice if all these tools we've been exploring were simply accessed by a link on our "myuspace" page rather than having to remember to go to each of them individually and remembering the proper URL's.