Revolution in Iran?

Probably not. But there are reports from Free Iran that crowds are fighting with authorites:

Several independent citizen sources have reported the formation of significant crowds throughout the country, and have heard many loud explosions and gun shots, including in the cities of Tehran, Esfahan, and Shiraz.

Its a matter of "wait'n-see" at this points, but its worth a heads-up on.

Hat tip to NRO on the source.