Microsoft has announced that the Xbox 360 has sold over 10 million units in the U.S., making it the first current-generation high-definition gaming console to break the 10 million mark in the U.S.

"This year will be the largest in the history of the video game industry, with Xbox 360 leading the charge in the U.S. and abroad,” said Don Mattrick, senior vice president of the Interactive Entertainment Business in the Entertainment and Devices Division at Microsoft. “History has shown us that the first company to reach 10 million in console sales wins the generation battle. We are uniquely positioned to set a new benchmark for the industry."

This announcement comes on the heels of one of the biggest entertainment launches in history, “Grand Theft Auto IV,” on April 29, 2008. Gamers eager to experience “Grand Theft Auto IV” online helped boost Xbox LIVE global membership to over 12 million this month.