The video is for the new Phone Companion app coming to Windows 10 but in it, Joe Belfiore clearly shows this screen that seems to confirm our favorite virtual assistant is indeed destined for a cross-platform future for iPhone, iPad and Android.

On iPhone and Android, for example, Cortana will show up as an app and can be used in much the same way as Cortana on Windows Phone. Ask questions, get answers, reminders and so on.

We'll be back with more on this soon, but for now, check out the video for yourselves below. Cortana's going to be everywhere with Windows 10, and Microsoft really means everywhere.

Thanks to everyone who tipped us!