I find it most interesting that Apple hasn't mentioned a word as to this leak at all. The FBI has denied, NCFTA has refused to comment, but why hasn't anyone asked Apple as to their comments? This much data floating around had to have come from someone with lots of info, and if it isn't apple, then who?
And I don't quite know what they could do: everyone knows UDIDs aren't the greatest idea in the world now, which is why they've already been deprecated and will be replaced by application specific tokens in the future.