One of the most highly anticipated accessories among gamers may now be one of the most highly anticipated accessories among Microsoft investors as well. Microsoft’s Don Mattrick told Bloomberg News in an interview that the company is raising its holiday season Kinect sales projections from 3 million to 5 million units. According to the executive, that would make Kinect Microsoft’s biggest Xbox product launch in company history. Microsoft Kinect, which goes on sale November 4th, is a new type of gaming accessory that will allow players to use their bodies to control functions within a video game. Kinect’s sensor bar includes a series of cameras that observe players’ movements and then translate those movements into commands. The sensor will be sold as a stand-alone accessory or as part of a bundle with either a game or the Xbox 360 console itself.