I see your point. Well even IBM Simon was running Datalight ROM-DOS. I can't imagine a device as complex as a smartphone, even with a fraction of its features r

I see your point. Well even IBM Simon was running Datalight ROM-DOS. I can't imagine a device as complex as a smartphone, even with a fraction of its features running all directly on the metal, can you? https://en.wikipedia.org/wiki/Datalight#ROM-DOS https://en.wikipedia.org/wiki/Datalight#ROM-DOS