You know, I've seen that picture thrown around before (in previous year's options catalogs). I've only been on this forum for a year but I'm sure the pic has been around for much longer than that. IMO, a headrest mounted system is better because it doesn't extend out into the backseat cabin space like the pictured system does. I know that with the system pictured above, my 3-year old, sitting in his carseat, would use the screen as a foot rest.

However, the main drawback to the headrest mounted system is that you lose the adjustable headrest "pillow" that comes with the multi-contour seats. I don't know how much of a loss that is since I've never had it, but I do wish I had it nevertheless. So neither system is perfect.