If you see yourself being an illegal tetherer on the iPhone over AT&T’s network as a good thing, that, my friend, is going to have its curtain drawn down as well. Ma Bell will be removing unlimited plans for users who jailbreak their iPhones in order to tether off AT&T’s unlimited data plans. Check out what an AT&T spokesperson has to say about the situation after the jump.

Earlier this year, we began sending letters, emails, and text messages to a small number of smartphone customers who use their devices for tethering but aren’t on our required tethering plan. Our goal here is fairness for all of our customers. (This impacts a only small percentage of our smartphone customer base.)

The letters outline three choices:

1) Stop tethering and keep their current plan (including grandfathered unlimited plan)
2) Proactively call AT&T or visit our stores and move to the required tethering plan
3) Do nothing and we’ll go ahead and add the tethering plan on their behalf — after the dated noted in their customer notification

AT&T has confirmed the above to be true, so just enjoy whatever time you have left – AT&T did not give a hard cutoff date, but since it can be anytime, this is where the adage “every second counts” comes into play.

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