Microsoft released its Kinect for Windows SDK Beta 2 on Friday that adds support for Windows 8, among other changes. According to ZDNET, Microsoft has two Kinect development kits. One software development kit for commercial usage will be available early next year. The second kit, released on Friday, is targeted at enthusiasts running Windows 7 or the developer build of Windows 8. “Developing Kinect enabled applications is essentially the same as developing other Windows applications, except that this SDK provides support for the features of the Kinect sensor,” Microsoft explained in a note accompanying the release. The SDK also adds support for 64-bit apps, improved accuracy and a number of enhancements to skeletal tracking.