I think Matra has hit the nail on the the head there with basically 2 important points. 1) No game devs can even begin to be exploring the full extent of the PS3's capabilities, especially with all it's "new" fancy tech. This also goes for the 360, though, looking at its specs, to me it's just a more powerful version using the latest (when it was designed) graphics engine technologies, so it should be easier for devs to take it to its limits.
And 2) DirectX. This is the software (I spose thats how its described) that basically pushes forward all the developments in graphics engine technology. On PC, devs make their games to utilise DirectX capabilities. Microsoft developed/s this. Microsoft makes the 360. Hmmmm.
Faster, faster, faster, until the thrill of speed overcomes the fear of death...
– Hunter Thompson