It looks like this was pushed by the fact that impeachment has increasingly seemed the only way that the ruling coalition would stay together, but I see it as a good thing, as Musharraf has been bad for Pakistan, bad for the US, and ineffective against terrorism in the reason.

Of the two political leaders, Asif Ali Zardari, and Nawaz Sharif, it has been Zardari who has been least eager to move in this direction, probably because if Musharraf is impeached, then his pardon of Zardari regarding his corruption might be called into questions.

It will be a close thing thouhg, as a 2/3 vote is required.

Musharraf is taking it seriously. He has canceled his trip to the Beijing games in order to marshal political support, which probably means getting support from the Pakistani military, though with the head of the military, General Ashfaq Parvez Kayani, repeatedly stating that he wanted the military to stay out of politics, I’m not sure how much support is there.