Sony may have prevented pics of God of War 2, MotorStorm, and Resistance: Fall of Man from being taken during Phil Harrison's keynote speech yesterday, but they did let folks take video footage of the other PS3 tech demos on the GDC floor.

So here you have not only the "Lots of Ducks" tech demo all the way from last year's E3 presentation, but you've also got a user-manipulated look at Unreal Engine 3 (which will purportedly power Unreal Tournament 2007 on PS3 next year), a performance-analysis app that flips a face around, and the underwater fish demo also seen during Phil's address.

Of course, there's only so much nudging around of heavy barrels with the Unreal engine that you can take without wondering what juicy UT tidbits will turn up at E3 2006. What's nice, though, is if you're sick and tired of seeing more rubber duckies in Sony's bathtub, you can watch for them in that fishy underwater video resting at the bottom of the sea. Wow, those ducks went down... permanently! Just remember that these technical demos are not representative of final playable games. (Darn.)

See also:

• GDC: The PS3 keynote blow by blow [Chris gets his "wrist slapped"]
• An in-depth look at Unreal Tournament 2007
• Sony confirms God of War 2 worldwide Q1 2007
  
• Engadget & Joystiq's live coverage of Sony's PlayStation 3 launch