Interesting. I have had an iPhone since version one with unlimited data plan (now on iPhone 4). Do not recall ever receiving notice of throttling nor have I noticed any degradation in performance. I do not use anywhere near 2GB of data in the course of a month so maybe I have not been affected and I access the net via Wi-Fi 90 percent of the which probably helps. Got my iPads after unlimited plans were discontinued. Use them even less.