bealine: A usual, another very helpful post. I think that your list should be printed up and placed on stands along the queue, as well as on the TV screens over the desks.
Since these screens simply state the flight number or carrier and class of the desk below, they could scroll through a list of these points, showing the logo and desk status inbetween each.
Since the pax are not doing much, if they see this list each time they check in, it may be a way to help educate them.