If it's true they've actually killed Osama Bin Laden 'himself', this changes pretty much nothing. So they've nailed a financier and a figurehead, who will have made preparations for his death if he was smart, including distributing his money to his 2i/cs and selecting someone to take over when he's gone. Now it'll be played up as this massive important achievement on our side, when it's only symbolic. Why celebrate? It will probably lead to more retaliatory attacks, if the man killed wasn't a decoy.
Still I guess one less is something, even though hundreds of 'Taliban commanders' were let out of prison in Afghanistan last week by corrupt guards, for like, the third time in a few years. ¬_¬