iPad 3 Vs. iPad 4. What's Changed Exactly?

Last night must have been a bit of a blur for Apple fans the world over. Not only did Tim Cook and co. take to the stage to unveil the long-mooted iPad Mini, but the company revealed new upgrades to the iMac (calling it “the most beautiful iMac we have ever made”), Mac Mini and lifted the curtains on a 13-inch ‘Retina’ MacBook Pro. But there was yet one more announcement, and that was for the iPad 4.