Sony Computer Entertainment and Microsoft both showed off new motion control at E3 2009 and both appear to have designs on launching those offerings in 2010. And some third party publishers already have Project Natal dev kits.
THQ's Brian Farrell tells G4's The Feed that his company already has Natal development tools. They've had them for four to six weeks, by his estimation. The same can't be said for development on Sony's PlayStation Eye powered motion control tech, which is apparently still in the third-party "discussion" stage.
Sony apparently did say to developers, via a recent dev community bulletin, that "hardware prototypes and support are in extremely limited supply," that it is "prioritizing allocation for those partners likely to be able to deliver a title that makes use of the distinctive features of this controller at its consumer launch." That launch is penciled in for Spring of 2010, a launch that may not include THQ.
On the Natal front, Farrell isn't quite yet ready to discuss what THQ has planned. He doesn't rule out motion controlled content target at core users, but says the camera tech "feels more casual to us at this point."