In a recent press release Nintendo stated that New Super Mario Bros. has surpassed 1 million copies sold within the North American region in just 12 weeks. In addition to the NSMB sales data, Nintendo has also announced that 2 new DS Light colors will be released in North America this September. Coral (pink) and Onyx (black) will be the two new colors and should help to propel already booming DS Light sales.

Other tidbits included in the release mentioned that Animal Crossing: Wild World has surpassed 800,000 sales in North American with Brain Age: Train Your Brain in Minutes a Day passing 4 million worldwide and Big Brain Academy at nearly 2 million.
The sales of DS Software and the DS Light hardware have been nothing but impressive. If Nintendo can ride the success of the DS into the next generation of consoles, the Wii could be off to a big launch. Japan definitely has Nintendo DS fever right now, but it will be interesting to see if that translates into console sales this Fall. Strong GBA sales never seemed to spur GameCube sales along in any region, but the DS/Wii philosophy is definitely more similar than the GBA/GCN has been.