On sprints website there is information about tower upgrades like data speeds upgrades and data capacity upgrades. he tower in my area is going to have (or already has) a data speed upgrade and I would like to know what that is? I doubt it is 4g because I live in a rural area and from what I have read, sprint isn't going to upgrade to evdo rev b. Also, my phone is connected to evdo rev a:8 and my dads is rev a:6 and I would like to know what the difference is and what the numbers mean. I am curious because my data speeds have been horribly slow the last few days, as apposed to the good data speeds i can usually get, and i would like to know if the slow speeds could be because of the tower being upgraded. I am sorry for the long post but 3g is my only internet connection at my house and I would like to know what is going on. Thanks in advance!