[jaywalk]

It's called ThinkShutter and it physically covers the camera lens.

[mvanbaak]

so it doesn't turn it off, it just puts some plastic in front of it. Plastic that is easier to break then something inside the case that will cut the power. While I am a big fan of the idea of the thinkshutter and friends, a real switch that cuts the loop to the cam/mic is a better option.

[jaywalk]

I think a physical shutter is superior, if only for peace of mind. If the lens is covered, nothing else matters.

[kyuudou]

I'm of the same opinion. I keep one on at all times, especially for those moments when someone's teleconferencing software turns on camera by default and I'm not in a work-safe outfit or environment.