InVoc puts the accelerometer in an Android Wear watch to work in an entirely new way. Motion data is captured when a user performs certain gestures—say, gently tugging their ear or scratching their head. Once a series of established movements is recognized, commands and applications can be programmed to correspond accordingly. So heading out after dinner and motioning to hail a cab could order a Lyft automatically, without ever needing to stare down at a screen. This technology could help out a lot of people who have difficulty typing, talking, reading or other difficulties, by enabling them to take control of their digital life. Connected with more and more 'smart home' devices, you could be able to do almost everything in your home, just by waving your hand the right way.