Shortages the 360 comes in 2 or 3 models ? so they have to get the ratio of production for them correct ,also model changes from 95 to 65um and so on result in production line changes Before changing chips they probably overproduce for a while.As It takes time to ramp up production of the new version and do quality testing and so on resulting in shortages of whatever model they did not produce enough of prior to the MFR changes so it's not supprising to get supply shortages of one model or another for short periods.
PS3 number 1 fan







