I'm grandfathered in the unlimited plan. I usually use <2GB each month, epecially when not traveling, so could conceivably save the $5/mo by switching to the 2GB plan. However, one of the reasons I don't use more data is bc 3G frankly sucks for video streaming. Once an LTE ipad model ships I am pretty sure I'll do more streaming and eat more data. I just have to hope that I can bring the unlimited plan with me as I did from the iPad 1 to 2.