1) Many people in Iran are no doubt fed up with the government - just like in Broken Britain.
2) The regime in Iran may well be a harsh one for it's internal critics. Police beat people up at demonstrations in both countries.
3) The CIA may be part-financing regime change in Iran, just like it did in so many other countries. The fact that the West has invaded two neighbouring countries and ruined them, and is interfering in every country in the region, as well as Iran's own nuclear programme, probably also applies negative pressure on the state of Iran.
4) The 'green revolution' has the same chance of success as any other revolution.
5) Ahmadinejad is just another leader, an elected leader, of a country. What he has said about Israel is correct, including "The regime occupying Jerusalem must vanish from the page of time". This would be the minimum requirement for a just outcome after the many crimes Israel has committed. This does not mean they want to commit genocide.
6) There are 20,000 Jews living in peace in Iran, they have a member of parliament.
7) Ahmadinejad apparently said The Holocaust is a myth. He meant that The Holocaust is being used a myth by supporters of Israel, which is very well explained and supported in Norman Finkelstein's book: "Beyond Chutzpah: On the Misuse of Anti-Semitism and the Abuse of History". U of California P, ISBN 0-520-24598-9. 2nd updated edition, U of Cal. P. June 2008, ISBN 0520249895,
And judging by the title is probably explained in:
"The Holocaust Industry: Reflections on the Exploitation of Jewish Suffering", Verso, ISBN 1-85984-488-X.
I think it would be better reporting if the headlines used against Iran's regime today were directed at the racist state of Israel, who are waging a war against a poor section of their own country, and using them as slave labour, after expelling them from their homes and land 60 years ago (see Ilan Pappe: "The Ethnic Cleansing of Palestine", London and New York: Oneworld, 2006. ISBN 1851684670), and are still getting away with it, and are somehow succeeding in getting media coverage which portrays THEM as the peacemakers.