You can do that in any car today. Nor is there a lack of devices available for physically attaching a regular tablet to your dashboard.

The question is whether a car maker should be encouraging or enabling a generic touch screen tablet to be installed on the dashboard versus an infotainment device with constrained functionality like AA/CP designed to minimize driver distraction.

I would be happy with a built-in screen that did nothing but AA/CP while the car was driving, and then reverted to a normal tablet interface when the car is parked.

Climate control, etc should be physical knobs and buttons. Anything critical to driving should be on or near the steering wheel.