I never get why cell phones don’t have the indicator light that tells you the camera is on. Ideally this light would be physically linked to the power going to the camera and the light would be impossible to disable without physically altering the device. I’d like the same for the microphone. I think location based stuff is a little more instantaneous in turn harder to accomplish but generally speaking more indicators that cannot be disabled with software tightly coupled with sensors potentially violating our privacy.