It’s lighter, thinner and crafted of glass and aluminum. After buzzing rumors and anticipated hype, the new iPhone 5 is here, . Apple unveiled its latest smart phone, with a 4-inch screen, that is 20 percent lighter and 18 percent thinner than its predecessor, the iPhone 4s. Pre-orders for the iPhone 5 begin Friday, and Apple stores will sell the device a week later on Sept. 21. Local Target, Best Buy and AT&T shops also sell iPhones.