Ah, that's the math. I had forgotten about the toolbar (thinking about the address bar hiding).
Supporting orientation changing at all is also an interesting choice. The addressable surface area would be larger if static, so the trade is pixels for orientation flexibility (and the appearance of gravity holding the chalk and eraser in place, and the orientation of the light switch...).
Yeah, a series of deliberate decisions led us down this path. We could have opened it up and made it more generic. The tight scope allowed us to get it deployed in 3 days.
Supporting orientation changing at all is also an interesting choice. The addressable surface area would be larger if static, so the trade is pixels for orientation flexibility (and the appearance of gravity holding the chalk and eraser in place, and the orientation of the light switch...).