Odds are it's not happening. If THG or any other hardware review site made their internal testing tools public then the hardware manufacturers would have the ability to optimize their games to perform better on those specific tests, but not necessarilty in the rest of the game.
ATi and nVidia have both demontsrated that they are not above doing this with 3DMark and other testing tools (and they got caught, were publicly embarrased, and there were huge flame wars, it was great!). Makes me wonder how much they get away with that no one ever catches. :cool:
<font color=blue>Good judgement comes from experience.
Experience comes from bad judgement.</font color=blue>
Lars did make the HL2 timedemos available, as did Anandtech and [H]. problem is, with each steam engine update, a new timedemo is needed, so Lars said he is just using a downloaded one now instead of rerecording their own "THG" version each time.