Cortana didn’t officially appear until April and won’t roll out to most users for a few weeks yet, but it’s already been attracting a lot of positive attention as it looks to take on Google Now and Siri in the battle of the digital assistants. If comments made this week by Microsoft staff are anything to go by, the app could eventually make its way to iOS and Android too. First of all, those comments in full. “It’s a bit of a head-scratcher for us right now,” said Windows Phone group program manager Marcus Ash, as reported by GeekWire, so Redmond chiefs are obviously thinking about it. “If you play this out five to ten years, and these assistants become the reason you choose Android or iOS or Windows, then what’s our position? Could Cortana be the thing that, as a Windows user, [makes me feel like] I’ve got to get a Windows phone?” he added during a Q&A session at a conference in Seattle.