I for one am shocked. SHOCKED I tell you that a telecom would falsely advertise the speeds you can get.
I guess Apple or the carrier might also not even know what they are doing but this is pretty damning.
If this gets really big in the media, you'll see AT&T jump out and say they do it to all phones, or apple saying that it's a bug and they're working on a fix. They'll remove the code and put it somewhere else