The computer that has the form factor of the “phone” is not going anywhere soon. First you will see a wave of more thoughtfully designed wearables such as head/earphones, glasses, contact lenses, pins and wristbands. Glasses and Contact lens technology is when you can at least remove the screen from the “phone” form factor, but until then screens will still have a use case. Eye based technology will be less invasive than brain computer interface tech. Once BCI becomes a no brainer (pun intended) and the tech that transmits signal to satellites is upgraded for most of the cities on the planet then consumer choice will still require the speed of data transfer vision via screens. Future tech is skull based IMHO. 🙂