The plugin looks great. I installed it without any trouble, but I noticed that after I logged into a test account:
-There is nowhere for the user to logout of their account.-
I tried the widget, but it didn't reflect the status of the user signed in via the user account page. And I wouldn't really want to use a widget.
I'm using the latest version of the plugin, and wp.
Again, this is a great idea, and it seams like you have pulled it off.