Controlling audio also seems pretty big with the assumption that gestures work "through various materials for seamless interaction" as the website says. The dia

Controlling audio also seems pretty big with the assumption that gestures work "through various materials for seamless interaction" as the website says. The dial, slide, and swipe gestures look perfect for adjusting volume and skipping songs without taking your phone out of your pocket. Technically a smart watch could also do this (though I'm not sure if it'd be equally smooth), but I also can't remember the last time I saw someone wearing a smart watch (YMMV, I'm in the midwest). It seems like it'd work well in the general case of "I want to control a device that I can't touch". There's lots of reasons you wouldn't want to touch a device (dirty/non-free hands, device is out of reach, device doesn't have a screen, etc) and a lot of devices you'd want to control from afar (televisions, radios, speakers, AC units, alarm clocks, or arguably phones, I guess). It'll be interesting to see what uses emerge from that intersection once other kinds of devices get Soli. I wonder if it'd be useful for more crazy ideas that fit into "giving a device more information about physical actions nearby" (like sleep tracking), but I don't know how realistic those are.