The iPhone makes better use of the data plan than anyone has before. Disagree with anything else about it, but MobileSafari is by far the best browser on any phone.
I made no comment about how previous data plans have been used. I was merely pointing out that the assertion that the iPhone was the first to offer an "affordable unlimited data plan" was simply untrue. I'm sure MobileSafari is better than donuts, but it has nothing to do with my comment.