Engadget - According to the site's measurements, Cupertino's flagship slab reached 33.6 degrees centigrade (92.5 Fahrenheit), compared to 28.3 centigrade (82.9 Fahrenheit) with the iPad 2. That's certainly not enough heat to cause a tablet to spontaneously combust, but if you happen to be one of those new iPad owners that noticed a difference, you can now rest assured that your internal thermometer hasn't missed a beat.