Apple unveiled the next-generation Iphone, iPhone 5s along with the new iPhone 5c at a special event on Tuesday. The iPhone 5s is a much improvised version of the iPhone 5 with new internals, although it sports almost the same design. It offers some revolutionary features. Here's a look at 10 new features of the iPhone 5s.1. New A7 chip with 64-bit architecture According to Apple, the iPhone