Once again I have found and read an article about users of unlimited data plans who are in the top 5% usage category. This time it is naming ATT and also gives an iPhone 4s user as an example. However I have yet to be able to determine what quantity of data a person in the top 5% might use in a month, nor have I ever been able to find any numbers by searching for such kind of information (gotta get the terms formed up just right, and I guess I haven't). Anyone have any ideas how many GBs a "heavy user" chews through? (Only once did I ever go over 5 gb in a month, and that was when I still had my Verizon data card plan and had just purchased an iPhone. Downloading the upgrade .ipsw file took me over. But, I convinced Verizon that I should not be charged extra because of the circumstances of the new phone and contract.) Thanks for the discussion.