Trivia #14 : Guess me by Connecting the dots

Hi Guys,
Blogging after an extended hiatus.
Ok. Lets get straight to the point.
Here's the trivia of the day.

1. I am a consumer electronics device and the technology behind me was invented by Zeev Zalevsky, Alexander Shpunt, Aviad Maizels and Javier Garcia.

2. My company code named the project which developed me "Project Natal", as my company has a convention of code naming development projects after cities.

3. As an off-shoot, I am being used even in the field of robotics, surveillance, medicine etc.

4. Ok here comes my claim to supremacy.
I am the "fastest selling consumer electronics device" as per the people at Guinness.
You guys have bought 8 million of me in the 1st 60 days after my launch.

Who am I?
Ok. I give this too.
I am not an Apple product.