We already knew Nintendo's DS was quite the popular handheld, and while the PSP recently overtook it in Japanese hardware sales, the most recent numbers show that the Big N's famed DS has actually rocketed above the mighty PlayStation 2 in lifetime sales (in Japan). Notably, the numbers do combine DS and DS Lite units, but there's no mention of how the systems stack up worldwide. Nevertheless, the feat is a fairly impressive one when you consider how much longer the PS2 has been available compared to the DS, and unless Sony somehow lightens the PS2 load even further and starts bundling them in with cereals, we doubt it will reclaim the top spot anytime soon.