Apple today announced pre-orders of its iPhone 4S have topped one million in a single day, surpassing the previous single day pre-order record of 600,000 held by iPhone 4. iPhone 4S is the most amazing iPhone yet, packed with incredible new features including Apple’s dual-core A5 chip for blazing fast performance and stunning graphics; an all new camera with advanced optics; full 1080p HD resolution video recording; and Siri, an intelligent assistant that helps you get things done just by asking. "We are blown away with the incredible customer response to iPhone 4S," said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. "The first day pre-orders for iPhone…