I'm not sure that I'm sold on peripherals for AR. However, if a companion device like a phone happens to be present, having non-touch screen tactile inputs woul

I'm not sure that I'm sold on peripherals for AR. However, if a companion device like a phone happens to be present, having non-touch screen tactile inputs would be nice, even something as simple as being able to squeeze or grip the phone body (a la Google/HTC's Active Edge), or tap it through one's pocket, avoiding having to take it out, orient the screen, make sure some other content isn't inadvertently on the screen, etc.