I have Joomla 2.5 and your plugin works very good.
I read about the logout option in this topic and I set up the Joomla Login module to display on the edit page.
The problem is that when I click the Logout nothing happens.... the user can not leave without making the changes...
I also install and use the Advanced Module Manager (from nonumber.nl) but same result.
Are there something else that I have to change?