Ok those holding off on the 2.0.2 update need to go for it, looks like 2.0 and 2.0.1 phones can affect other running 2.0.2, that's why at&t sent out the text to upgrade, because 2.0.2 only helps if the majority of phones on a a tower are using it: The Inside Deets on iPhone 2.0.2 and Dropped Calls — RoughlyDrafted Magazine