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except Natal isn't based on 3DV technology

http://en.wikipedia.org/wiki/Project_Natal

Project Natal is likely based on software technology developed internally by Microsoft and 3D camera technology by Israeli developer Prime Sense, which interprets 3D scene information from a continuous infrared pattern.^[15][16] It was initially reported that the hardware was acquired from time-of-flight camera developer 3DV Systems.^{[17][8][18][19][20][21]} However, this was dismissed by comments from Alex Kipman, Natal's lead developer, who stated "Our IR does not pulse and it is not based on a TOF system."^[22]

Well, we won't really know, will we? The acquisition might have been because at MS they were interested in the tech itself to complement their own natural interface r&d, or because they were going to show something similar and they wanted to pre-empt patent litigation.

But it's all irrelevant, as the article focuses on the 3d full body motion sensing part via a depth IR camera, and Natal's approach on that is the double RGB/depth cameras and the specs when it comes to accuracy and image rate are similar for game design ( can I track individual fingers? what is the accuracy of the most relevant joints? what is the latency? )

Ofcourse its by 3DV the technology is by them MS bought them and improved the Design.

^{3DV stated that the webcam would be priced comparably to other peripherals in the gaming market such as the PlayStation Eye: less than US$100,[17] with a bundled US$69.99 price mentioned as a possibility.[14] The webcam was to include software development kits for camera control and gesture recognition.[16] 3DV originally projected the ZCam to be released before the end of 2008,[14] then later revised the projection to 2009.[21] In March 2009, the company agreed to sell its assets including the ZCam to a third party,[7] later confirmed to beMicrosoft.[8][22] Following these reports, it was speculated that Microsoft would use the ZCam technology for a motion-sensing controller system for the Xbox 360 video game console or its successor. This speculation increased in the month leading up to Microsoft's announcement of the Project Natal 3D depth-sensing device at the 2009 Electronic Entertainment Expo, during which leaked information about that device prompted frequent comparisons with the ZCam.[23]}

From what I have seen in videos Natal got much more lag then 3DV ZCam.

Link please? what videos?

No they don't. You don't see Nintendo taking stabs at the userbase of the PS3 or say that PS3s are going into the closet. Sony has deservedly the worst reputation for talking smack about the competion but I wouldn't take offense if you disregarded anything Alan Greenburg said about Move because hes obviously biased and he too has a poor reputation as an individual. Sony has absolutely no credibility when talking about competitor products, none. They burnt it with all their stupid offhanded comments over the past couple of years.

I couldnt care less About motion controllers...Let MS win this battle, I dont want my system to turn into another wii :/

ZCam http://www.youtube.com/watch?v=6hDKaMvAFzA

Natal http://www.youtube.com/watch?v=QGvYFAYqRRw