Just caught this post about an Apple patent application using your iPhone and a geofence to allow activation of functions in your car. There are the obvious ones like automatic door unlock-lock, and not so obvious ones like the phone/car recognizing that you are walking towards the car and will be at your vehicle in 5 minutes, and thus the climate control can be switched on prior to your arrival. Some of the functions are linked to low power Bluetooth and iBeacon technology being rolled out.
See:
http://www.macrumors.com/2013/12/11...ons-detailed-in-new-apple-patent-application/
(Mods--feel free to move as appropriate).
See:
http://www.macrumors.com/2013/12/11...ons-detailed-in-new-apple-patent-application/
(Mods--feel free to move as appropriate).