Exactly.These are what's known as CGI tech Demos.Methinks its more like Sony's Hype creating gimmick.
From all the CGI vids present on the net for the Playstation 3 games its generating more curiosity about the Graphical capabilities of the console.Man if those CGI videos of Kill Zone 2,Killing Day and Motor Storm trailers where actual In game footages then I wouldnt have thought even a slip second before giving into buying the console,Even if i had to Kill Kotaragi for it
If the Graphics are so life like on PS3 then thats the real essence of 'Next Gen Console' which will be created by Sony.