Now Sony has a motion sensor, too

And then there were three…

Sony today joined the motion sensing controller club, unveiling the PlayStation Motion Controller, a new controller that works in concert with a video camera that it says it plans to launch in the spring of 2010.

It’s a controller that has a lot more in common with Nintendo than Microsoft’s “Project Natal”. A remote works in conjunction with the Sony EyeToy to reflect onscreen movement.

But where Nintendo is chasing the casual audience, Sony has its eye on the hardcore. The company showed several tech demos, including using the controller in a first person shooter context and as a mace, which takes out advancing demons with a swing.

Sony and Microsoft are both offering more advanced devices than the Wii, even when you take the Wii’s forthcoming WiiMotion Plus add on into account. But both are at least a year away from being available – and neither company has the current installed base of the Wii. The Wii, though, lacks the graphical power of the Xbox 360 or PS3. 

Should be an interesting fight when the three start slugging it out.