This month AT&T started charging a monthly "Mobility Administrative Fee" of $0.61 to mobile customers. If you want to get out of your contract early, you can use this fee increase to cancel the contract without paying an early termination fee.
This fee offers a rare chance to fight back against a corporate giant. You can use the administrative fee as a loophole to break your contract, without having to pay any costly early termination fees.
Even if the monthly fee isn't a big deal to you, upgrading your phone early probably is. By canceling your contract, you can get a new Samsung Galaxy S4 or HTC One with AT&T or another wireless carrier at the cheaper subsidized pricing.
Nelson Aguilar at Wonder How To describes how to do it