Announced just recently, S.T.A.L.K.E.R.: Clear Sky is being pushed back to September 15th due to a manufacturing issue. That is all, for reckonry.

Official Release:
Deep Silver, the games label of Koch Media, a leading producer and distributor of digital entertainment products, today announced that due a problem in manufacturing, S.T.A.L.K.E.R.: Clear Sky will hit retail stores in North America on September 15, 2008. The digital download release date has not yet been determined.