I know that if I was a leader in Iran, I would be VERY TEMPTED to jump across the Gulf and help liberate Bahrain and Saudi Arabia...considering that the US and other countries are getting their jollies right now by bombing the crap out of Libya. I would DEFINITELY sense a power vacuum in the Gulf.
If that happens, want to bet Israel would help Saudis and send missiles, possibly nuclear,; into Iran as a pretext?