At least some anecdotes from AT&T subscribers have shown that its throttling practices for unlimited data plan users have started to take effect at low levels. John Cozen claimed to have seen the throttling take effect with as little as 2.1GB of data used in the month, or just over the pre-increase 2GB tiered plan's cap. He escalated complaints about the issue to levels where he could confirm the throttling wasn't a mistake.
