You can already count on a dash of AI assistance in some mobile messaging apps, whether it's Google Assistant in Allo or the smart replies you find across iOS. But what if Skype is your chat app of choice? You're covered: as of today, Microsoft is rolling out its Cortana assistant to the Skype apps for Android and iOS. You can talk directly to Cortana if you want to ask about directions, flights or the weather, but it promises to be the biggest help inside your normal conversations.