Zynga (ZNGA) warns it expects 2012 bookings of $1.085B-$1.1B, below already lowered guidance of $1.15B-$1.225B. The company expects Q3 revenue to reach $300M-$305M (above a $275.9M consensus), but forecasts bookings will amount to just $250M-$255M. Zynga blames weakness in games within its web "invest and express" category (e.g. FarmVille, CityVille). Also, an $85M-$95M write-down is being taken on the OMGPOP acquisition. Shares are halted, and will resume trading at 5.05PM ET.