Quite a few, actually. Mesta was the first one I know to spot the RevGuards around Zawahiri way back and mentioned it in a report to Admiral Lowell Jacoby in 2005.
Since then, it has been more or less common knowledge, for example that Laden’s sons and grandchildren were being run by Iran with an eye to taking over AQ in the future, and that the upper echelon AQ was safehoused in Iran for long periods of time.
On the blog, we have some nifty footage of these critters being displayed by the Iranians, and run through military training.
Thanks, will check later.