[webjprgm]

Yup, I agree. Also it would add extra CPU usage at all times. Of course, you could make it like Siri in that you have to press some key to turn it on. That solves all 3 problems, though I wonder if the webcam activates fast enough for the intended immediately-stop-the-music use.

[mehuln]

Great point. CPU usage was a concern for us, that is why we spent months optimizing it. It right now uses on average ~5% of your CPU. (20-30% when you do a gesture, 2-3% otherwise). Please try the app if you have Mac and send us more feedback, we would love to hear from you!