As promised here is what I communicated to RIM (minus the contact info on the individuals) and their response to me today: I said:
Here is the list of names sent to me since Tuesday with dust issues. You can add my name to the list as the Show unit is now starting to show dust under the screen. Still small amount at this point but becoming noticeable.
Also there were at least three attendees that still have not received their units. I am enclosing the name and contact info for the one I have and when the other two send me their info I will forward it to you.
Thanks John. We're just waiting to get a few more of the recently built units to swap with these folks (and now yourself).