So I have been given the option of using one of my family member's upgrades on AT&T. currently split unlimited data, 1400 minutes and unlimited text back from when we got 3GSs in July 09 I am eligible in July to upgrade. What I am wondering is if there will be much improvement with a 5S like there had been with the 4S and 3GS. I have only owned a 3GS and currently own a 4S. Part of me wants to get something now, mainly because I am not sure if AT&T will pull a verizon when the next phone comes out and make me pay full price for a subsidized phone to keep unlimited data. I could wait, which I don't mind, but feel worried the grandfathered plan holders won't have much longer. WWDC is in June and I would assume something is announced there(ios7). Only things I see that are sensible for the next upgrade are processor and ram. *Maybe* camera. I wouldn't expect apple to change form already. Maybe in 2014. Anyone else in the same boat?