Good news to for all the Kinect enthusiasts!
Microsoft Research in collaboration with IEB (Interactive Entertainment Business) is working on the Kinect for Windows SDK. It should be available sometime in spring of this year as a FREE download! The SDK will give direct control of the Kinect sensor and also access to important pieces of the Kinect system such as the audio technology and system application programming interfaces.
A bit more detailed information you can find on the Official Microsoft Blog at this link:
You can also subscribe to the RSS feed to get news on how development on the SDK is progressing at this link: