Good one!! Thanks for taking the time to write this Wayne.
So if we have a feature where you configure and idle timeout and it will work as follows:
User is happily surfing either the public pages or the admin section of the site or their own user profile page. They sit on a page longer than X seconds and the page refreshes and logs them out.
Sounds about right? If so I'll get it hopefully in the next release. Just confirm this would work for you.
Regards,
Mark.