After Jim and Alec's reviews have found their way into the world, Eurogamer eject my take on Clear Sky onto the Internet. In it I say things like:
"It's a graphically improved prequel that integrates a mass of things that were promised for Stalker with assorted game tweaks that - on paper - sound as if they'd improve the immersion of the game considerably. In practice, it mainly shows that there are no good or bad ideas: only good and bad executions."
And other stuff which is a bit more flowery. As per usual, eh? More here.
EDIT: Jim's review here.