Comment 19 for bug 498182

There is a workaround for the missing logout button:
Add the indicator applet session twice and make the menu bar 40 pixels wide.
the accessible logout button will always be on the second instance of the applet that gets initiated. Therefore removing the first instance once you have the button only works until you log out.

I hope this fix makes it into lucid because I find the limited support for vertical menus quite annoying especially since widescreen monitors are becoming the standard. On a widescreen monitor, vertical menus are IMHO much more space-efficient than horizontal ones.