It's nice that Lighting Fixtures can now be copy/monitored from the linked model. It would help if we could copy-monitor receptacle devices. Currently, 99% of the jobs we work on have the receptacles placed by the architect and there really isn't a work around to circuiting those receptacles in the MEP model and utilizing what Revit is supposed to be useful for. The only way I see of doing it is placing receptacles in the same location as the linked model, however, you can probably guess what the problem here is. Whenever there is a new model, you have to check each receptacle location to see if it has moved, which takes up too much time on it's own. If there is another workaround, by all means please let me know.
-Chris