If T-Mobile's recent event cussed you into wanting one of its tweaked A1428 iPhone 5s with LTE, AWS HSPA+ and no contract strings attached, you can now order one up. Apple's flagship can be had through the carrier for $99 down and 24 payments of $20 for a total of $579 -- a snappy $70 savings over buying one directly from Cupertino. Meanwhile, T-Mo's