Drudge is reporting that Bush has scheduled a personnel announcement for 1:45 p.m. I'll keep you posted.
UPDATE: Porter Goss resigned, according to an administration official.
UPDATE 2:55p.m.: Bush's and Goss' comments on the resignation, here.
Porter's tenure at the CIA was one of transition. He's helped this agency become integrated into the intelligence community, and that was a tough job. He's led ably. He's got a five-year plan to increase the number of analysts and operatives, which is going to help make this country a safer place and help us win the war on terror. He's instilled a sense of professionalism. He honors the proud history of the CIA, an organization that is known for its secrecy and accountability. I am confident that his successor will continue the reforms that he's put in place, and as a result, this country will be more secure.
UPDATE 3:07p.m.: Superfun Powerhour wonders why the resignation, and tracks the speculation and rumors, specifically among the Kos kids.
UPDATE 3:36p.m.: John Podhoretz thinks there's likely no big scandal here.