A lil bit of info has been released about the new PS4 dual shock 4 controller.
Posted by Jaideep Sharma(NCS Admin)(AKA coregamer here at AM) :
Finally the new PS4 has been announced and with it comes a new controller. The Dualshock 4!
It has a touchpad, motion control and a so called "light bar" for identification.
There's also a "share" button, and the light bar, as well as being used to identify players with colour coding, is also the means via which a new PlayStation camera can track the pad for advanced motion controls.
Although rumors suggest that the Dualshock 3 will still be compatible but we're still to confirm it.
The price of the controller will likely be higher than the Dualshock 3 and the controller could be a reason for the PS4's success or failure since people really don't like paying much for accessories like a controller.
Link for official PS4 release.PDF.
http://www.scei.co.jp/corporate/release/pdf/130221a_e.pdf