more exactly, the emodule is there, but the E guys are a bit strict and removed the "xembed" which is the traditional (old) way to use systray from the module, because xembed is crap, unfortunately this makes some apps (that uses the old xembed system) not work
the new one is appindicator or similar name IIRC, includes also the menus to be compatible with your own desktop theme (menus system), which makes it confusing (feeling that is directly part of your desktop and not an external app)
in short, e22 may (or not) still use the old xembed system, but the strange thing is that nm-applet is meant to use the new system and it doesn't works on e23... bug on nm-applet or in the systray module ?
