There may be a positive side to all this.
Ms Bhutto is a possible successor, and she is secular, pro-western and anti-terrorist; and although she may have to make concessions to put together a coalition, she probably has enough support to replace Musharaf. Also, in the interregnum, we may have the opportunity to discreetly and discretely strike into the Al-Quaeda hideouts on the Afghani border and destroy their infrastructure, perhaps even kill or capture OBL himself.
If you can't stop chaos, or mitigate its effects, you might as well take advantage of it. Turkey, now Pakistan, good grief; what a cock-up this is turning out to be.