Black Friday, as defined by Nintendo Sunday November 21 through Saturday November 27, has been another glory year for the dual screen system of choice (prior to the onslaught of the 3DS). The Nintendo DS according to Nintendo’s internal numbers sold upwards of 900,000 units to Black Friday shoppers looking for the best possible holiday gift item for their dearest and most loved family members, leaving the 5 for $5 PSP Go’s for the lesser unwanted redheaded nephews.