A Tweet by Xbox Live's Major Nelson - Larry Hryb, to his family - has pointed to the launch of the Kinect for Windows SDK website.
The site states that the SDK programming toolkit is "coming later this spring," and that it will "enable researchers and enthusiasts easy access to the capabilities offered by the Microsoft Kinect device connected to computers running Microsoft Windows 7."
The first release of the SDK will be for non-commercial use, with a commercial application planned for a later date. It had previously been confirmed for release in March.
SDK highlights for the curious-minded include:
"The latest advances in audio processing, which include a four-element microphone array with sophisticated acoustic noise and echo cancellation for crystal clear audio," and, "Depth data, which provides the distance of an object from the Kinect camera, as well as the raw audio and image data, which together open up opportunities for creating richer natural user interface experiences."
You can sign up for RSS feed updates on the site, if you so wish.