Nintendo projects the DS to be the top-selling system of the year in the USA.

More than six million Nintendo DS systems have sold in the United States in 2007 through to the 30th of November, according to internal Nintendo of America Inc. sales numbers. That's a rate of about one sold every five seconds of 2007, enough to project Nintendo DS will be the top-selling video game system of any kind for the year. Nintendo DS has increased its sales in the United States every year since it launched in November 2004.

"There's no letup in sight," says George Harrison, Nintendo of America's senior vice president of marketing and corporate communications. "Nintendo DS appeals strongly to both core and casual gamers, and its momentum is set to propel us into 2008."

Nintendo DS began 2007 strong, but its momentum increased as the year progressed. Before 2007, Game Boy Advance held the all-time US Thanksgiving week sales record, with 600,000 systems sold in 2005. But Nintendo DS beat that Thanksgiving week record with more than 650,000 sold.

Nintendo says the appeal of the DS stems from the diversity of software available for the system.