This is a well thought out analogy but by the same token even though it might be nice to shrink the form factor even to watch size if you could but a lot of the

This is a well thought out analogy but by the same token even though it might be nice to shrink the form factor even to watch size if you could but a lot of the space required isn't the machine at all it is screen and keyboard in which the pickup truck or van style input has an enormous advantage.