except changing the models, animation and even story elements is inherently a reboot, but deciding to reboot with less content than previous version is entirely illogical. If you are presenting a product, no sane individual would tell you "release the product again, but with less features and more flaws". If the next iPhone was just the iPhone 3 but more annoying, very few people would buy it. I hope I taught you something, always good to teach those who don't understand :)