Very nice indeed
But I foresee some difficulties with high mount screen...
I know your in US but in the UK a car with rear visibility has to have a centre rear view mirror, I suppose we just add a second screen for rear view. Only need a cheap LCD.
Also, everyone behind you can see exactly what you are doing or what you are watching, maybe good for Chav points, but not good for coppers as you'll get a ticket.
Is that the only position were its visible with the roof down in daylight though?