@Menos
Lock screen notification to select a payload would be a great addition, so there's no need to unlock the device wich makes the process a bit faster and more convenient. :)
Porting the Switchs' OS to the Shield would be nearly impossible, because it's closed source, and, except the CPU, the rest of the hardware is too different.
Ah, yes, portrait mode, surely the best way to film a row of people. If only there were some way to fit a wider shot, at the expense of height... if only...