I prefer the portrait orientation screen that allows simultaneous display of 2 applications, both of which are close to the driver. I use the rear camera view constantly on the top for safety and cannot imagine it being useful on a landscape display.
I also prefer to have autopilot info in my line of sight, not to the side like in the Model 3. If there is an HUD or AP information in some sort of minimalist binnacle in front of the driver, that might be okay...
Was hoping for a screen similar to the OLED portrait screen in the Roadster prototype.