Microsoft said on Monday that it sold more than 1 million Kinect add-ons for the Xbox 360 in its first 10 days of availability. The company says that the device, which went on sale in North America on November 4, is on track to sell more than 5 million units by the end of 2010.

"We are appreciative of the response we have seen from consumers that has culminated in sales of more than 1 million units in the first 10 days on the market for Kinect for Xbox 360," said Microsoft Interactive Entertainment Business President Don Mattrick. "This is a great start to the holiday season, and we will continue to work with our retailer partners to keep pace with high demand and deliver against our plan to sell more than 5 million Kinect sensors worldwide by the end of this year."

Kinect is a motion-sensor add-on for Microsoft's popular Xbox 360 video game console, enabling a new generation of Nintendo Wii-like—but controller-free—games. The device is available as a standalone add-on for $150, or you can purchase it in a bundle with two different Xbox 360 models, for $300 and $400 respectively.

The Kinect is coming to new locales soon, which should help it achieve the 5 million unit sales mark. Microsoft will offer the Kinect in Europe on November 10, in Asia on November 18, and then in Japan on November 20. There are about a dozen Kinect-specific titles available now, and Microsoft expects 17 to become available by the end of the year.