Great interview. Mr. Berkes constantly used his fingernail. I have an old Fujitsu LifeBook B-142 touchscreen. I use my fingernail also constantly. WE DON'T NEED all those buttons on the perimeter of the screen. One button needed: ON-OFF. For controls use the screen, it is a touch screen !!!!! Make the unit as big as the screen !!! The next generation that he shows at the start of the interview is what they should have developed.