AT&T fanboys can deny it until they're blue in the face. If they aren't getting it now, it is only a matter of time. They are already hitting DSL users with the overages. AT&T states in their FAQ that the users not getting slammed now are only off the hook because they haven't figured out how to meter them yet....YET. They'll get the meter fixed and AT&T U-Verse subs will have their fat overage bills soon enough.
The fact is the caps and overage penalties are AT&T policy.