A nice feature would be to force logout from all other locations.
I login on my work machine (I have shortcuts in my startup) and also on my home machine.
If I were to leave that job unexpectedly I'd want to make sure that staying logged into the Trilogy could not be compromised by someone accessing my work account and accessing my account.
Another example would be, if I login on a library PC, or a friends PC I'd want to make sure I could force a logout from those if I forget to do it on the site by logging in at home.