When I signed up to SkyDemon on my iPad I looked forward to being able to dispense with paper charts/airfield plates in the cockpit as have many commercial and private pilots.
Sadly I have experienced several episodes of sudden and complete shutdown of the iPad due to overheating (worse on hot days but can happen anytime)
A few minutes with the iPad by the footwell fresh air vent restores it but I'm afraid I will now never relinquish the paper chart or copies of airfield plates because of this.
Cusco