Microsoft has revealed that seven days from today for the Live Arcade Prince of Persia Classic ( web link ) and the Map Pack Transformers: Revenge of the Fallen will suffer a 50% discount by switching to 400 Microsoft Points from the usual 800, and Watchmen: The end is near ( web link ) will be downloadable at a price of 800 Microsoft Points over 1200 original. The benefit of those deals GOLD users only.