The battery life
"Now, 4G is a notorious battery hog. It scarfs down electricity like a football team at a hot dog eating contest. Apple, however, was determined to keep the iPad’s battery life unchanged from the last model: nine to 10 hours on a charge. In my all-day nonstop-usage test, it did manage nine hours," writes David Pogue of the New York Times. However, Pogue notes, there is a price to note for that battery life: "[A] fatter, heavier battery. The new iPad is one millimeter thicker, and 1.8 ounces heavier, than the iPad 2. It’s a very slight difference, but fingers used to handling the old iPad will feel it, and that’s too bad."
"It's hard to overstate the significance of the new screen," writes Shane Richmond of the UK Telegraph. "Apple has packed four times as many pixels into the same space and the improvement has to be seen to be believed. The display is extraordinarily sharp. Text and photos look beautiful. Put the new iPad side-by-side with the iPad 2 and the differences are amazing. The iPad 2 suddenly looks so blurry. How have I never noticed that before?"
The display, part 2