We got some AR coated panels back from the lab today. I'm slightly suspicious of the coating, which looks like it should be fragile, but does actually seem to be very tough. If you wipe it with a finger it marks very easily, but cleaning it down with a cloth brings it up like new again.
With regard to the AR properties, I'm going to get some current panels coated (we coated the old dark blue ones this time) and drive around in the sun for a few days. One level of coating that we have sampled seems to be approximately equivalent to the Mk.1 panel, and the other is more effective (but affects appearance of the display to a greater extent).
I'll keep you posted!
Rob