Regarding the JFBCLogin tag, we consider it a 'work in progress'. The Login tag was highly requested, so we squeezed it into the 3.1 release. We didn't add all the features we wanted to due to testing requirements. However, if you want to add the logout button, it's pretty easy (and similar to what we'll be doing). Edit the /plugins/system/jfbcsystem.php file, and at line 127, change the empty quotes (which are returned for registered users) to:
'<input type="submit" name="Submit" id="jfbcLogoutButton" class="button" value="Logout" onclick="javascript:jfbc.login.logout_button_click()" />'
If you're interested in making it into a link, instead of a button, you can check out the code in this handy-dandy thread:
www.sourcecoast.com/forums/topic?id=1672&p=1#p7013
This won't do the reconnect link, as that's a little tougher. In the 3.2 release we expect to have the logout button be an option for the tag, but I don't know what our syntax will be yet. When we do come out with 3.2 though, make sure you update your tag.
As always, hope this helps, and let the debate continue!