«Of course, many things in the multi-touch UI, page turning animations, etc. were first done by the group of my friend Nicholas Negroponte at MIT. The idea of touch screen interaction also goes back to this community, both at PARC and Negroponte’s research group at MIT that invented a multi-touch tablet in the 70s. One set of the machines we made, called ‘The NoteTaker,’ had a touch screen.»