Reading around the web, you hear stories of blazing sellouts in some places and overstock creep in others. The standard wash of anecdotal flimsiness, in other words. Microsoft knows precisely what's happening but won't divulge a thing until it deems the moment "market optimal" and issues a press statement titled something like "X million Kinects sold" in such-and-such amount of time. Sony's done much the same with Move, though fudging the crucial distinction between units "shipped" and "sold-through."
In fact Sony fudges a lot of things. The company's PlayStation 3 "can only do everything," which of course it can't.
Take the PlayStation Move. Replace my plastic back scratcher? Maybe next time, Sony.