http://www.gamespot.com/news/2004/11/12/news_6113031.html
Damn, 10 days apart?Nintendo has the kind of headache most companies dream about. On one hand, Nintendo is confronting greater-than-expected consumer demand for its upcoming DS handheld. On the other hand--and here comes the headache--if Nintendo can't meet increased demand, Japanese consumers who can't locate a DS to purchase when it goes on sale December 2 might decide to spend their handheld budget on a Sony PSP instead. Sony's new handheld comes to market in Japan just 10 days after the DS, on December 12.