New Specifications of Kinect have revealed that only 2 Players can play at one time. The Kinect which is the renamed Project Natal was released a while back at E3 2010 uses a pair of VGA-resolution webcams, together with a 16-bit audio system which is only able to detect only two players at one time.
But according to the specs, 6 players can be tracked by Kinect while only 2 of them can actually play while the other 4 will be confused by the motion sensing system. The Kinect looks like a let-down when compared with the Wii and Playstation Move which can support upto 4 players at one time.
However there have been no official wording on this issue by Microsoft, So we will have to wait while Kinect is priced at 149.99$.
Colour and depth-sensing lenses
Voice microphone array
Tilt motor for sensor adjustment
Fully compatible with existing Xbox 360 consoles
Field of View
Horizontal field of view: 57 degrees
Vertical field of view: 43 degrees
Physical tilt range: ± 27 degrees
Depth sensor range: 1.2m – 3.5m
320×240 16-bit depth @ 30 frames/sec
640×480 32-bit colour@ 30 frames/sec
16-bit audio @ 16 kHz
Skeletal Tracking System
Tracks up to 6 people, including 2 active players
Tracks 20 joints per active player
Ability to map active players to LIVE Avatars
LIVE party chat and in-game voice chat (requires Xbox LIVE Gold Membership)
Echo cancellation system enhances voice input
Speech recognition in multiple