I usually use an box-type iPad shade, but in the summertime even that is not enough, and I have to and cool the iPad next to my car A/C vents after a couple of flights. One day I forgot the shade, and had to use the iPad by itself in the sun. Apart from having difficulty seeing the screen in the sun, the iPad got so hot it quit working halfway through the first flight. Now the iPad shade is on my checklist.I only get one flight out of an iPad before it goes south. Between the heat and the humidity, electronics here don't stand a chance.