AT&T Mobile Share

New pricing and data plans are taking effect on Saturday for AT&T customers who are Mobile Share Value plan subscribers. The company also announced that customers on a new 15GB plan or higher get unlimited voice calling and text messaging to Canada and Mexico. The revised plans continue to include rollover data, which rolls over any unused data from an individual month into the following billing period. Some existing plans will be scrapped in favor of different usage tiers and new pricing:

T-Mobile may not be an official Apple partner, but the company is making serious moves to increase the amount of iPhones used on its network. According to a leaked flyer obtained by TMONews, the carrier is preparing to launch a "Bring Your iPhone to T-Mobile" campaign.

The flyer shows how much money AT&T customers will save if they bring their unlocked iPhones to T-Mobile. The carrier's move comes after AT&T's Mobile Share Plan / FaceTime controversy, and right before Apple is expected to announce the iPhone 5 in Spetmeber. iOS 6 will add 3G cellular calling to the popular FaceTime feature on the iPhone 4S and later models, and AT&T has announced that its subscribers will need a Mobile Share data plan to use the 3G service. T-Mobile hopes AT&T's unpopular FaceTime policy will convince some AT&T subscribers to switch carriers, but that's not all T-Mobile has up its sleeve.

As promised AT&T rolled out its new Mobile Share data plans on Thursday. The new plans are designed to help new and existing subscribers share data on up to 10 devices. Existing customers do not have to switch to a Mobile Share plan, but can do so without a contract extension if they choose to.

The Mobile Plans start at $40 for 1GB of data with unlimited talk and text. You can add an additional smartphone for $45, basic phones cost an additional $30, additional laptops and mobile hotspot devices cost $20, and tablets and gaming devices are $10 each per month. At least one smartphone is required to be part of an AT&T Mobile Share group. You will of course need more data for each device you add, so plans range from 1GB to 20GB of data. The price of an adding an additional smartphone does decrease until you hit the 10GB tier.

AT&T has announced that its new Mobile Share plans will be available starting Thursday, Aug. 23. The carrier has also launched a Mobile Share planner to help families prepare for the upcoming changes if they choose to switch.

The new plans are designed to help new and existing subscribers share data on up to 10 devices. Users who sign up for the Mobile Share plan will also enjoy unlimited voice minutes, text messages and free mobile hotspot capabilities. Existing members are not required to switch to a new plan, but they can do so without a contract extension. At least one smartphone is required to be part of each AT&T Mobile Share group.