“That’s why we’re working with Alexa, and we would welcome it on our devices because we believe in a world where our own assistant should be available everywhere and so should other assistants be available on our devices,” he noted. The CEO thinks Cortana has strength in its ability to work well in business and personal environments. Users can work with the assistant in Office, but equally use her when playing games on Xbox One. “The phone, in my view, is going to be, for the foreseeable future, a finger-first, mobile-first device,” explained Lu. “You need an AI-first device to solidify an emerging base of ecosystems.”