Richard Leadbetter from Digital Foundry at Eurogamer writes:
"Having had a taster of the portable experience at gamescom a few weeks back and coming away very impressed, I was very eager to check it out. Very little in the way of actual, tangible assets have emerged, with Sony's own E3 reveal shying away from showing the actual game, and this is rather odd, because even as a non-professional video editor, armed with around 30 minutes of raw video captures, I was able to put this trailer together, showing that - at its best - GT PSP can look quite spectacular."
- The first alternate source link goes straight to the video -