Average speed camera's can also tag speeding cars, but I suspect that functionality comes at an extra charge, and given that cars slow down when they see a camera I don't think they'd make much money there.
However, they're the reason I still have a TomTom app running despite my company car trying to force Google Maps down my throat: TomTom picks up the average speed trajectory and keeps track of my speed vs the 'traject total', where as Google Maps at best occasionally shows a speed camera. Now I tend to stay within the speed limit, but sometimes you have to overtake and with the app you can keep an eye on how much margin you have for that.
Biting the hand that feeds IT
