Apple Inc on Tuesday unveiled a new version of its smartphone, the iPhone 4S. iPhone 4S will run on the same chip as iPad, that is A5. iPhone 4S is said to have a battery life of 8 hours 3G talk time and can run 10 hours of video. Earlier, Scott Forstall, Senior Vice President of iOS Software at Apple Inc, took stage at Apple's iPhone event on Tuesday to talk about iOS 5. iOS 5 which has 200 new features will be available as a free update on October 12. According to Reuters, Scott Forstall talked about the integration of Twitter into many of Apple's built-in apps. He also introduced...