Many people have been associating rapid data consumption with LTE. Perhaps there's another reason... AT&T kindly provides an email message with the subject line: "AT&T Plan Nearly Out of Data" when we reach 80 percent our limit (20 percent left). I have received this notice only about 3 or 4x within the past year with my iPad 2 and have never exceeded my data plan. Usually, it's a couple days before auto-renewal. This month I received a notice only 2 days after renewal (April 3). What happened??? I don't have LTE and was primarily using it at home in a wifi environment except for two specific occasions while away when I logged into a website the evening of the renewal (4 minutes) and the next day checked my Twitter account (2 minutes) while at the Apple Store. Apparently, with 3G Cellular Data enabled within iPad settings, connectivity doesn't always prioritize the way we might expect. I downloaded Hulu Plus trial last night and watched a few of shows. Evidently during this time, cellular data was being consumed rather than wifi. This seems like it is a iOS issue. Until it is resolved, my recommendation is to manually disable cellular data within iPad settings when wifi is available. It's what I normally do but this month when I did not, my suspicions of improper data allotment seems confirmed.