As an iPhone 3GS owner I can say this is going to be one of the best updates Apple has ever introduced to the iPhone. What are you excited about the most in the new update? I can't wait to get a background behind the icons, multitasking, folders, and the five time digital zoom for the camera. But everything is absolutley amazing in this new update. I don't have patience to wait until Monday. Haha. Best answer is to the one that is most specific and interesting.