Some new software tucked into iOS 9 beta will let T-iPhones play with Apple's Continuity feature over T-Mobile's cellular network, not just over Wi-Fi.
iPad and iOS news
New customers hoping to pay for their tablet in monthly installments and get the free tablet data deal will also need to sign up for a $20-a-month plan.
By giving away data each month, T-Mobile makes a compelling case to buy its version of the iPad. That's dangerous for its rivals.
The carrier is also starting a tablet trade-in program and confirmed that users would get 200 megabytes of data "free for life."
By offering free data, company tempts Apple fans looking to pick up a new iPad Air or iPad Mini with Retina Display.
A check of the Web site had found a requirement to sign up for a monthly plan. Updated: T-Mobile has apologized and called it "an executional mistake."
What to expect if the iPhone officially comes to T-Mobile.
John Legere confirms that the iPhone is coming, a change that promises to lift a shadow long hanging over the carrier. But then there's the LTE question.
Apple releases public previews of its mobile and desktop operating systems, Facebook gives you more News Feed controls, and Meerkat makes big changes to challenge Periscope.
The new Apple SIM card will let you bounce between carriers on short-term plans, without needing to get a new SIM card.