Dr Richard Marks, the man behind Sony's controller has been talking a bit more about the new motion controller as well as his feelings about Kinect.

Marks told Edge Online that he believed that Microsoft's philosophy that one controller is too many wasn't quite right suggesting that there is no way to adequately replace butons.

The Move inventor explained: "I don't think that point of view is quite right. When we did EyeToy we wanted to create a new way to play games but we didn't want to replace the existing way. I think that you can do some things really well with just a camera, or just a camera, but there's just some stuff you can't do as well. And theres a bunch of experiences you could never do as well. I think our system is really flexible because we still have a camera we could still do all the stuff EyeToy did and more but we also have this more high-fidelity controller which you hold in your hand and is tracked really accurately, and you have the buttons."

He added: "Buttons are irreplaceable as an input device. Too many buttons are overwhelming, but one single button is very powerful feeling. For core games you really do need a set of buttons to quickly choose things. Trying to replace buttons with gestures doesnt work very well."

By Ewan Aiton