Hidden VNC module, audio/cam recording (as well as watching live) or keylogger

Hidden VNC could be very good.

Audio/cam recording - sometimes you want to record what is happening, and you lose quality from having to watch or listen live requiring a lot of bandwidth for e.g. a 1080p webcam. I don't know for other people, I just know for me it would be super nice

Keylogger - because there isn't one already