Apple Unveils IPhone 5 to Extend Lead in Smartphone Market

Apple Unrelived new version of the iPhone that boasts a bigger screen, faster chip and access to speedier wireless networks, an overhaul aimed at gaining share in the $219.1 billion smartphone market. The thinner, lighter handset is called iPhone 5 and costs $199 to $399. It features a casing made of glass and aluminum, a chip that can process commands more swiftly and a 4-inch screen -- compared with 3.5 inches on the earlier models. Apple also revamped its mobile software, adding three-dimensional mapping, closer integration with Facebook Inc. and improvements on the Siri voice-recognition tool.