At first it used to now you have a option
No, you have to buy it separately.
That depends on if you buy it as a deal package, if you do, the price of kinect/the xbox is reduced due to the deal.
No it doesn't. You have to buy special kinect games to use the kinect.
No Kinect games come with the regular Xbox. If you buy Kinect than you get Kinect Adventures. If you a Kinect Bundle for $250 (Regular Kinect sensor is only $150 and comes with kinect adventures) than there are three games that come with the Kinect sensor. The games depend on what bundle you get.
If you already have the Xbox 360, you can just buy the Kinect bundle console which saves you more money. Kinect bundle works in Xbox 360 with both 4GB and 250GB memory. You can also buy an Xbox 360 which already comes with a Kinect bundle. You can't play Kinect without an Xbox 360 nonetheless.
You can buy XBox 360 and Kinect Bundles at Amazon and on ebay.
I would buy the Kinect for your Xbox but not a modded controller as you will get suspended if you play with a modded controller.
Amazon have some great Xbox Kinect bundles, but demand is heavy so you are advised to buy early.
yes, if you buy the game and xbox kinect software
You can go to the following website to find out information and to answer all of your questions about the xbox kinect www.xbox.com/kinect. It is a new game system
No the Kinect is something separate you can buy if you choose to.
Yes, you do not need to buy a kinect if you already have an x-box