BY THE APPLE GIRLThe new iPad featuring the Retina display, A5X quad core graphics, a 5 MP iSight camera for capturing amazing photos and 1080p HD camera, 10 hour battery life and 4G LTE support, has topped 3 million units in less than 4 days. In comparison, Apple sold 4 million iPhone 4S units in its first weekend and they were much cheaper and more widely popular.