Not quite. Listen to Obama's speech and Khamenei's reponse.
Obama made it clear that the US wouldn't accept a nuclear Iran. Listen to what he said yourself, instead of relying on some press agency to give you the skinny. His words left little doubt that the sanctions will continue, and that Obama shits on Iran's unalienable right to enrich uranium. It didn't talk of any change in American policy towards Iran, nor did it even allude to one. He flattered the Iranian people and wished them well is all.
How bloody stupid does he think they are? That they would be so pleased about the personalized message and stop the turbines? At best, the speech will play in the hands of the opposition comes election time in Tehran. But I don't see the country opposing an energy independent Iran. I mean, how freakin' stupid do you people think Iranians are? There are grassroots movements opposed to many aspects of the Iranian status-quo, but nuclear energy isn't one of them.
The US, or any other nuclear country, bitching about Tehran's uranium enrichment program is pure hypocrisy.