The capabilities of Kinect were somewhat enigmatic until E3, where more details finally came out. However, a hardware spec sheet gives a very revealing look as to the Kinect’s true capabilities.
The most interesting revelation deals with the Skeletal Tracking System, which as specified before, tracks 20 joints on the human body and can map active players to Xbox Live Avatars. However, the revealing bit is that it Tracks up to 6 people, including 2 active players, implying that only two people can be playing a Kinect game at a time.
Source: Play.com
