People write out books on their phones. There's no need to be so rigid in the distinction between the types of device. But I do agree with the original point t

People write out books on their phones. There's no need to be so rigid in the distinction between the types of device. But I do agree with the original point that everyone has failed to make a unified interface for both modes and a distinct switch would be better until they can converge from real world learned lessons. Apple will never make a product like that though.