NEW YORK (Reuters) – Microsoft Corp has sold more than 2.5 million of its controller-free Kinect video game systems worldwide only 25 days after launch, the world's largest software company said, keeping it on track to hit its target of 5 million sales this holiday shopping season. Kinect sold well during the high-volume "Black Friday" shopping period after Thanksgiving, which traditionally kicks off holiday shopping, according to a Target, e ...