Advances in UI: Google Announces Project Soli

At their May 29th, 2015 developer's conference in San Francisco, Google introduced Soli - a radar-based wearable that tracks tiny human gestures.

Are we about to enter an era where our most subtle of gestures and reactions - sensed by unobtrusive devices - make our every interaction with technology (e.g., games, devices, movies, cars and the vast oceans of data we all now must navigate) that much more satisfying? 

Or are we just getting a new, more expensive remote? 

Will Soli change everything - or simply help us to effortlessly burn the toast, crank the volume too high and find reruns of Hogan's Heros?