Investors seem to be incredibly stupid. Whenever something amazing is announced, they sell. Like the people who sold after Nokia announced the 920. The thing had tons of features no one had seen before in a phone, and then stock went down. Last week MS had the most positively-received announcement ever and even gave us holograms for Pete's sake, and investors are unhappy. What were they expecting for this to come as a disappointment? Do these guys go into every tech announcement fully expecting flying cars that cure cancer?