iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
T-Mobile USA Announces Trade-In Offer for Existing iPhone Owners Ahead of iPhone 5 Launch
“Our message to iPhone 4S and iPhone 4 customers is simple: bring in your device and trade up to iPhone 5 on T-Mobile,” said Mike Sievert, chief marketing officer for T-Mobile. “We’re making it incredibly attractive to buy an iPhone 5 by pairing an un-beatable upfront price and trade-in offer with Simple Choice, the most hassle-free and affordable rate plan in wireless.”
The offer is valid through June 16, with the additional credit applicable to monthly service fees, an outstanding balance, accessories, or another device.
T-Mobile's new "Uncarrier" service plans unbundle device costs from service plans, allowing users to finance the full cost of their devices over 24 months while signing up for contract-free service starting at $50/month.