On a related note, where does this put the developers who got the letter? I can't imagine that this letter just makes everything all hunky dory. How do they respond now that Apple has issued a statement?
If I were a developer sitting in the hot seat, I'd feel inclined to delay as long as possible, forcing Lodsys to fight an expensive legal battle with a much larger opponent. Ducking service, while often unfavorable in the court's view, would be a virtually free method of prolonging Lodsys' engagement with indie developers, and would cost them only inconvenience.