According to Ign.com, the Nintendo DS has passed the 20 million mark in Japan, and within three years of its release, 12/2/2004.
Since the redesign version in 2006, the DS lite has sold 6 million units by itself.
It is estimated that the Nintendo DS should reach 28 million units by march 2008.
According to Media Create, the DS and DS Lite have captured 50.26% of the
Japanese hardware market since their release. Software for the platform has accounted for 40% of the entire software market at 83.95 million units. Of that figure, 9.94% was achieved by the two Brain Age games, which have combined for 8.35 million units.