Siri is, by far, my favorite recent addition to iOS. In an age when electronic devices keep getting smaller, faster, and thinner, the humble keyboard feels increasingly like a relic of a bygone era--an era when computers were designed to occupy entire rooms instead of the palm of a hand. Apple's virtual assistant has changed the ways in which I interact with my mobile devices in a significant, if small, way.Related StoriesiPhone naming convention 'sends a weak message' - former Apple consultantCompanies should ban Facebook Home, experts say