I don’t have much to add, so I’ll point you to the Guardian.

It’s clearly an end game:

• Two pilots were ordered to bomb protesters, and defected to Malta.
• Border guards are abandoning their posts.
• Reports of naval fire and aerial bombardment of some neighborhoods in Tripoli.
• Bizarre statements from Qaddafi and his son(s).

 This is not going to be pretty, but it is completely outside of my intellectual strengths, such as they are.

Unfortunately, unlike Egypt, there are not a lot of press on the ground, so what is coming out is sketchy.