Nintendo announced that the Nintendo DS family of portable video game systems has sold more than 47 million in the United States since the original model launched in November 2004. The company did not break down the number based on various SKU's of the device (DSi, DSi XL, etc.). Nintendo also said that the Wii enjoyed U.S. sales of "more than 7 million" and that its to date number in the U.S. hit 34 million.
These numbers are based on internal sales figures. Even using the loose figure of 7 million, Wii sales in the U.S. declined from 9.5 million in 2009 and 10 million units in 2008.
We expect to have more concrete numbers from NPD group at some point. Nintendo is set to release its new Nintendo 3DS hand-held system in the United States in March.