I have been an AT&T customer for the past 10 years, since the Cingular days. My contract for my iPhone 4 is officially up tomorrow. I just got off the phone with AT&T to ask what they are going to do to keep me as a customer and everyone I spoke to just didn't try. I mentioned over and over that my biggest disappointment was in regards to the "unlimited" data plan that I am currently on and two of the reps I spoke to put me on hold to verify this with their supervisor. Seriously, how can anyone working for them not know about this? I was then told that I could switch to a tiered plan at full speed..... yeah right. After being passed around from rep to rep, the best offer I received was 6 months of free unlimited texting, that's it. Anything else was just a sales pitch for something I didn't want or need. An experience like mine is why AT&T is going to lose customers like me when the next iPhone is released.