I agree that ALL cameras need to be tethered, even if on a tri pod. iphones are particularly vulnerable if only mounted to a suction cup holder, which in turn is stuck on the windshield. Should your car have a "hard" off, chances are better than slim your phone is going to have an off from the cup holder. Seen it happen.
Seems funny when some poor person has had an off, and when the car is pulled or carried back to the paddock, the driver becomes busy looking for his phone.
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