(UPDATE: guess I'm back to my pre-2008 predictive ability. I still think Gaddafi's toast, though.)
We'll see if this prediction is as bad as my political predictions usually are, although I've improved a bit in recent years. My prediction is based on Gaddafi's attempt to retake eastern Libya with military force, an attempt that's apparently failed. If the opposition could stand up to him miltarily with one week of organizing, then they're only going to get stronger.
I don't know what the long term holds for Libya - the strong tribal structure seems worrying for national unity. I was very mistaken in the case of Iraq to think in early 2003 that chaos would be preferable to the rule of an incompetent tyrant. I won't assume chaos is preferable in Libya either, but I'm hoping the wave of people power in the Arab world might also lead to a different result.
One other note: conservative blowhards condemn Obama for not taking stronger action in Libya, while failing to notice that hundreds of Americans and other foreigners were still in Tripoli. Now that they're gone, Obama is taking stronger action. Adults are moving things forward.
UPDATE: See here for the American version of why it's important to remove the bad guys from power - that clears the way to punish them for their crimes. We didn't do that with the financial leaders of Wall Street, and now they're getting away.