From the WSJ:

Pakistani authorities announced that elections will be delayed until Feb. 18 because of unrest following the assassination of Benazir Bhutto. The vote had been scheduled for Jan. 8. Opposition parties alleged that authorities are postponing the polls to help the ruling party, which is allied to President Pervez Musharraf. Many believe Ms. Bhutto’s party would get a sympathy boost if the vote were to take place on time.

More at WSJ.

I’m not particularly surprised.  I think the motivation behind this is purely selfish on the part of Musharraf, but at the same time I think tensions need to be settled down before the election is held.  I’m not a big fan of the current government, but I’m also not a fan of voting emotionally.