[GrumpySimon]

Another important money quote:

    we trimmed out other personal data as, full names, cell     
    numbers, addresses, zipcodes, etc. not all devices have 
    the same amount of personal data linked. some devices
    contained lot of info.

So the release "just" contains UDID's and zip codes.

[timdorr]

Actually, it appears to only be UDID's, APNS tokens, device name, and device type.