I'm a little tired of "colored revolution" talk, mostly because what we've learned lately from Georgia and Ukraine is that getting rid of a bad government is the easy part; figuring out ways to institutionalize democratic governance is much, much harder.
There's not a lot of good news coming out of either country. Saakashvili has revealed himself to be the garden-variety post-Soviet tyrant that many already believed he was and the Ukrainians just this week forming a ruling coalition two months after the election.
So, when talk starts about a "Saffron Revolution" in Iran starts, I roll my eyes a bit. Be careful for what you wish for.