Apple Inc. has unveiled a new, faster version of the iPhone 4 that takes voice commands. The iPhone 4S will contain a dual-core A5 chip, the same one that powers the iPad 2, which will make it seven times faster than the original iPhone 4, the company announced Tuesday at an event at its Cupertino, Calif., headquarters. A key new feature touted by Apple executives is an "intelligent assistant" called "Siri" that uses voice recognition to answer questions and pull up an appropriate app. Siri could also be used to check for schedule conflicts, schedule appointments, and set an alarm.
