Avatar Kinect has been released worldwide today as part of Kinect Fun Labs, a service launched during E3 which enables users to download and play around with Kinect innovations.
The Avatar Kinect software uses Microsoft's motion sensor to recognise your facial expressions and represent them on screen through your avatar, allowing groups of users to sit around chatting in 24 themed virtual environments.
It's a free, 658.59 MB download you can grab now from Xbox.com. Avatar Kinect will normally require an Xbox Live Gold membership, but to celebrate its release it has been unlocked for all Xbox Live members (free or Gold) from now until September 8.
"Express yourself with your Xbox avatar," Microsoft says. "See your facial expressions and gestures on your Xbox avatar as you chat with friends in our 3D stages and produce your own TV shows.
"The Kinect sensor can record your session with a producer's editorial eye, following your performance, zooming and panning, just like a real TV production. Share your video recording with friends by uploading it to KinectShare.com and downloading it to your computer, and from there, posting it to your favorite social networking sites, like Facebook, Twitter, YouTube and more."