We've all been there: You're about to leave the office, or close your laptop and make a snack, when the phone in your pocket vibrates. Another email. You could stop and dig it out, interrupting your flow for the umpteenth time that day. Or, with Outlook for iOS, you can now ask Cortana to read everything in your inbox out loud. Microsoft says this "voice-forward" feature was designed for commuting and general multitasking. You can reply with your voice and use the on-screen interface -- which looks a bit like a music or podcast player -- to pause, flag and archive messages.