The logout button doesn't perform the action anymore. Used to after clicking "logout", it logged the user out of facebook AND the wordpress install.
Now, the logout button just loads the user's facebook profile page. The Log Out link in the admin toolbar does the same thing. If I log out of facebook through facebook.com and visit the wordpress site (http://chicagophoenix.com), I am still logged in to the site. The logout widget and admin taskbar does the same thing as before, redirecting to facebook, but to the login page rather than the user's profile page.