Is Gaddafi on the ropes?

Reportedly, his army units are starting to defect to the protesters.

SKY News reported:

Members of a Libyan army unit have told Benghazi residents they have defected and “liberated” the city from pro-Gaddafi forces.

Speaking from Benghazi, a local man named Benali, told Sky News that members of the Libya’s armed forces have defected and that anti-regime protesters are now in control of the city.
Habib al-Obaidi, who heads the intensive care unit at the main Al-Jalae hospital, appeared to confirm the reports, saying the “Thunderbolt” squad arrived at the hospital with soldiers who had been injured in clashes with Gaddafi’s men.

“They are now saying that they have overpowered the Praetorian Guard and that they have joined the people’s revolt,” said Mr al-Obaidi.