These PlayStation 4 controller prototypes may have been forged in the depths of hell - MSPoweruser
Sony Computer Entertainment Unveils The New Prototype Of "Project Morpheus" - A Virtual Reality System That Expands The World Of PlayStation®4 (PS4™) | Sony Corporation of America
PlayStation 4 PrototypeController vs PlayStation 3 Controller | pwnrsmanual
Playstation 4 Prototype Controller Close-Up - YouTube