I've heard a few stories about how Japanese companies are using these. There's one company which deployed a webcam app on their employees laptop to "track attentiveness" and dock pay for periods of time where they take their eyes off the screen. Another company is asking employees to wear a device (with camera and sensors) around their necks in order to track their overall "happiness". Stuff right out of 1984.

The fact there are people in my profession working on such things troubles me.