I want to use Navizon, but i dont know if I should. You see, I used Pwnage to unlock, activate, and jailbreak my 2g Iphone. I am with ATT, but I do not want to pay for the data package. Will using Navizon affect data usage? I dont want to be charged extravagantly for a mistake I could have avoided. I dont think it would, because Navizon only uses wifi (i think). I look forward to your comments.