I think Al Qaeda is happy about what is going on in Iraq, and quite possibly it's exactly what they wanted. However, they'll be coming after us again, without a doubt.
But what about the possibility that he's achieved what he set out to do? That his goal was to lure the U.S. into the Middle East so we could add to the political and military instability in the Middle East, Caucuses and Central Asia, helping the precipitate the collapse of what Bin Laden and his ideological fellow travelers believe is the inevitable recreation of the ancient Caliphate, the reunification of the peoples of Islam under one rule? International terrorists are almost always frustrated domestic terrorists who, unable to dislodge what they believe are the unjust and illegitimate governments or ruling classes of their home countries, take their grievances up another level, and attack those states, peoples or institutions that they believe have abetted the unjust and illegitimate rule in their home countries.