After enduring constant criticism from iPhone users for the lack of call quality, it seems like its AT&T’s turn to lash out. Accordingly, it is taking aim at all iPhone jail-breakers who use the iPhone as a tethering device without authorization. Apparently, AT&T has got hold of some basic software that has allowed it to pinpoint such users and this morning it sent out an e-mail asking them to sign up for a $540/year tethering plan voluntarily, failing which they will be automatically transferred to such a plan.

The plan in question is the DataPro 4GB plan for SmartPhone Tethering. The details are as follows”

• $45 per month (this gives you 4GB in total, combining both your smartphone data plan for $25 and the tethering feature, $20)
• $10 per each additional GB thereafter, added automatically as needed
• Mobile Hotspot capabilities are included for compatible Smartphones

If you are plan on jail-breaking your iPhone anytime soon for the purpose of tethering, we would recommend you to stop and think about it because right now AT&T seems to be well aware of the methods of catching such users. Morally there is nothing wrong with AT&T’s request because they are simply asking payment for services that users are using. Thus, we cannot really criticize this move.