This Eurogamer article reports the concern over Kinect's ability to detect players sat down on sofas has been eradicated after Microsoft updated the software behind the tech. From the article: "Kinect's much-discussed difficulty detecting sitting and lying down players was caused by it setting the base node used to create skeletal models at the bottom of the spine.
When players were sat down with their knees raised in front of their pelvis, Kinect encountered problems.
In July Microsoft insisted that Kinect could recognise players who were sitting down, despite a recent developer comment to the contrary.
This evening Eurogamer can reveal how Microsoft has made this possible.