Here's the latest of the 'Nite Owl' briefs from Iran:
http://iran.whyweprotest.net/news-current-events/8136-green-brief-18-19-a.html

Some interesting excerpts:

3. Heavy sand storms have hit Tehran and according to sources within the city, the entire city is affected by low visibility. Confirmed reports indicate that protesters are quietly going through the city and writing anti-government slogans on city walls, using the storm to their advantage.

7. Reliable sources have indicated that Mir Hossein Mousavi will be creating a new party in order to further their goals of nullifying the election. Among the many instances of fraud in the election that have been claimed by Mousavi is the alleged printing of 20 million extra votes by the government in order to fill boxes with votes for Ahmadinejad.

14. Hamid Maddah, a core member of Mousavi’s campaign in Mashhad, died in custody on Saturday. He had been arrested in Gowharshad Mosque along with many other Mousavi supporters. According to sources, he had been tortured badly and wasn’t able to recover. The official death certificate registers the cause of death as internal bleeding in the skull.

15. There are reports surfacing of the wide-spread use of torture and intimidation in Evin prison. Protesters are regularly beaten, sources claim, and there have been instances of male protesters being raped. Unconfirmed reports also indicate of several protesters being hanged at Evin and in Mashhad, but they cannot be confirmed at this point.