:Support the removal of Iran.  Conditions are different in Iran than in the Arab world.  It's not connected to the Arab world in the same way that the Arab states are connected to each other, and is only included by dint of being a Middle Eastern autocracy.  But I believe that WP:COMMON should be our guide, and in this regard, media seems to be contrasting Iran with the Arab countries, rather than including them.
I ran a Google News search for "Iran Arab Spring" and will list a run-down of the treatment by sources on the first page:
The Christian Science Monitor refers to "protests sweeping the Arab World".
The Huffington Post refers to "another spring on the Iranian scene.".
The next two articles, and two later down talk about the threat posed by Iran to the Arab Spring,  or Arab World 
The next article talks about Blackwater for some reason. 
Jerusalem Post calls its article "Arab spring, Persian winter." 'Nuff said.
The BBC includes Iran with China and Azerbaijan as related protests. 
The AFP (Whatever that is) says that Iran is different from the Arab countries, but also uses Arab spring to refer to the protesters there.  At four days old, it's the second oldest source on the front page. 
The oldest article, coming from The Telegraph, doesn't provide any indications either way. 
In short, all these articles either exclude Iran entirely from the Arab Spring, recognize it as distinct from the Arab countries, or remain silent on the issue.