You can have a lot of fun with Siri, the artificially intelligent, voice recognition-based assistant built into newer iPhones and iPads. But fun though Siri may be, it turns out the little voice inside your iOS device can also help you become increasingly productive.Related StoriesWhite House petition response shields iPhone jailbreak softwareiPhone 6 rumours: 'iPhone 5S' and low-cost plastic and fibreglass iPhone to be unveiled in June, says analyst
