Smart shoe rewards activity with TV time

It may not solve the childhood obesity crisis, but Square Eyes, a smart shoe for kids developed by a student at London's Brunel University, may be a start. The shoe's insole includes a pressure sensor that records how many steps the wearer takes over the course of a day, and transmits the data to a box connected to the home TV. More walking leads to more TV time; the box automatically shuts off the set once the day's limit has been reached. Could be useful, though we envision legions of kids banding together to hack this thing in no time — or bailing on the TV and catching their shows via Bit Torrent instead.