I would too, on every device, but I don't know how the industry is going to get past two barriers to achieving this: 1. It costs a little bit of money, and har

I would too, on every device, but I don't know how the industry is going to get past two barriers to achieving this: 1. It costs a little bit of money, and hardware designers love to minimize costs and eliminate parts. 2. It's not idiot-proof enough for a lot of people. You're going to have people who can't find the switch. And who complain and generate support costs. And annoy their coworkers by being muted during video conferences. Maybe you could fix the second one by having a flashing light on the switch that says, "Please switch this switch! The microphone is needed!" This could also increase awareness of when things are trying to use the microphone. although it would go against the first point because it's yet another part.