Not that smart on your ATV? At least your helmet will be. The prototype Wireless Impact Guardian has GPSand 3G transponder that can call 911 and let responders know where you are. If accelerometers built into the helmet sense an impact, the helmet will beep for a minute. If the beeping is not stopped, it calls for help. Currently going through the patent process, this is meant for motorcycles and ATVs, but if it proves popular, look for it in bike and ski helmets.
Oh, and by the way, it will also make it easier for the man to track your whereabouts.