I got a letter from AT&T yesterday stating that they've noticed that I use more than 2gb of data per month which puts me outside of 98% of their customers typical data use. The letter gave me a friendly reminder that AT&T has many free wifi hotspots, and, if I wasn't aware of this, that I should turn on wifi in my iphone settings and that the iphone would automatically connect to those free wifi hotspots. I guess that streaming internet radio and podcasts all day puts me into the 2% category. I feel special. I'm glad that I'm grandfathered into the unlimited data plan. I wouldn't be surprised to learn that they've reserved the ability to move me to a 2gb plan at their discretion.