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 Begins Taking Pre-Orders for iPhone 5 Ahead of April 12 Launch
Under T-Mobile's new payment model, the 16 GB iPhone 5 requires a down payment of $99.99 with the customer also responsible for an additional 24 monthly payments of $20, bringing the total cost of the device to $579.99. The 32 GB and 64 GB models carry the same monthly payment amounts, but require larger down payments of $199.99 and $299.99 respectively.
Single-line service plans for the iPhone 5 require no contract and begin at $50/month for unlimited talk, text, and data, although data is slowed to 2G speeds once the customer reaches 500 MB for the month. A $60/month plan raises the high-speed data cap to 2.5 GB, and a $70/month plan includes unlimited high-speed data.