Now that the specification only covers the posture it seems weird to have the main entry point of the API to be in the Screen interface.
I strongly think we should move it to another place like window or window.navigator. The thinking is that there is only a single posture at a given time and it's not dependent on the screen.
What does sound best to you folks?
I strongly think that it we land into a generic object like navigator or window we should rename the entry point from posture to device_posture.