Here's a video interview with Hideo Kojima showing off his new Fox Engine.
The newly announced engine will power his as yet unannounced next game.
The Metal Gear man says his studio is "paving the road to go multiplatform", and given the 360 and PS3 pads on his desk we can probably expect the title to arrive on those platforms.
Footage of the engine running in real-time shows a scene with a man and horse in a sunny forest, with impressive lighting effects casting the shadows of leaves on the scenery below.
Kojima explains that this was simply a testbed for his new game and not the title itself.