Some AT&T customers are getting emails and text messages today indicating the end of the free tethering party. Users of iPhone tethering apps that circumvent the paid option from the carrier are being told to upgrade their plans. AT&T requires a $45 data plan that offers 4GB of data and tethering for thoise that want to use data on other devices. But of course, the messages they sent out were polite as could be.
Customers are being told the plans “may need updating.” Those receiving the notice have until March 27 to call AT&T and talk things over. Presumably, AT&T will try to set them up with a tethering plan at that time. If tethering users decide to ignore AT&T's request, they'll be enrolled in the tethering plan automatically on the 27th.
It is unclear if users can dispute AT&T's assertion that they are tethering. We aren't sure what method AT&T is using to determine who has been using the capability. For all we know, it could be flawed. It looks like Android users on the carrier have been spared thus far. If you've gotten the warning, let us know what you're going to do.