Nintendo DS fastest selling Japanese system ever

Japan + DS = crazy popularity. Gamasutra writes: “According to a report from Japanese newspaper Kyoto Simbun, the Nintendo DS has become the fastest console or handheld ever to sell 10 million units in Japan, taking just 20 months to reach the milestone, an extremely impressive feat for the Kyoto-headquartered firm.”

Will the DS ever be as successful world-wide as it is in Japan?