Shortly after appearing on Israeli television with a new computer game you control merely by moving your head, Oded Ben Dov got a phone call. It came from a complete stranger who just happened to see this TV appearance, and he had a question. "I wasn't sure if it was a prank call or not, but then he started to say some serious stuff," Ben Dov remembers. The man on the other end of the line was Giora Livne, a former Israeli navy commander and electrical power engineer. He'd been quadriplegic for seven years, he explained, which made it impossible to use a smartphone without help.

Paul Herzlich works in Google's legal department and helped develop a special sensor for "pressure sores" by those who use wheelchairs. Paul Herzlich works in Google's legal department and helped develop a special sensor for "pressure sores" by those who use wheelchairs. For most of us, eye tracking technology sounds interesting. Eye tracking allows users to move a cursor around a computer or mobile device simply by moving your eyes and head. Oded Ben Dov initially used eye tracking technology to develop a video game that he showed off on Israeli TV.