pothole detector

detect potholes using whatever means are best at the time. Then, on a Heads up Display overlay them with Flames, or make them bright red, or something, anythign to make you avoid it. Preferably it woudl be able to tell how severe of a pothole this is. Might possibly require some form of user feedback while driving since it's so hard to tell if an approaching pothole is bad or not until you are almost on top of it. Drivers with GPSs could add a pothole report to a central server with it's approx coordinates and severity and possibly notes, and when your car encounters an upcoming pothole in that area it would assume it to be the reported one, or report a new one it found with a guessed severity.