According to AT&T's recently revised terms and conditions, "The parties agree that AT&T has the right to limit throughput or amount of data transferred and/or deny, disconnect, modify and/or terminate Service if you use more than 5 gigabytes in a month. If you require more than 5 gigabytes per month, ask us about our DataConnect 5GB Overage plan."

We've heard elsewhere about both AT&T and Verizon throttling connections to 200 kbps/sec if you go over 5GB. But what about that new "DataConnect 5GB Overage Plan?" You can't find it anywhere on AT&T's Web site. But if you call in, you'll find it's $350/month for 5GB, plus $0.50 per megabyte (really, $.0005 per kb, but my megabyte formula is more readable.) Since you're probably a heavy downloader, let's think of that as $500 per gigabyte.

Yes. They want to charge you $350 for exactly what you're paying $60 for. Want 10GB instead of 5GB? That'll cost you $2,850 for that month.

Now, to be fair, an AT&T rep told me that they'll probably give you a pass for a month or two if you accidentally go over 5GB. Then they'll give you a call and try to convince you to move to the Punitively Expensive Plan.

Verizon, by the way, charges the same $500 per gigabyte, but at least they don't hike your monthly fee to $350 while doing it.

Wireless broadband is great. Just don't, you know, use it.