Avatar Kinect is available right now on the Xbox marketplace! The Gadget is available to all Xbox Live Gold subscribers for free via Kinect Fun Labs, weighing in at 658.59MB's.
Avatar Kinect gives you full control of your Xbox Live Avatar, letting you interact in a variety of environments with friends and, for the first time with Kinect, control your characters face via facial tracking. You can also save and upload your interactions and voice to KinectShare, Facebook and other social network and media sites.
The software also comes with 8 achievements for a total of 50 points.