I think this could be synergetic with voice commands. It wont be useful on its own but sometimes you dont want to say every command out loud, so doing a little

I think this could be synergetic with voice commands. It wont be useful on its own but sometimes you dont want to say every command out loud, so doing a little annoyed wave feels more natural. Soli on its own is not going to sell phones in my opinion but maybe Google is building up to a larger more aware device that can ultimately guess your entire mood, behavior and position in the room and do various things based on that. Like a sort of virtual person that would detect if you look worried and then it asks you how you are feeling today. That's a futuristic direction that I can see this going towards. For example, one usecase that I would probably like is a phone that tracks my posture during workouts and if it's really advanced, it could give me advice or fire me up on my last reps. Like a personal trainer. Right now it seems we aren't anywhere near that but this is my guess for their strategic direction.