Carphone Warehouse has a "How to use Microsoft Continuum for Windows" video on their youtube channel showing the use of continuum through the 950 xl. when the lady opens the word app a dialog box appears. although its not possible to read what it says but somewhere in the comments the video creator says that it was asking for signing into an office 365 account. I know office apps (creating/editing) are free for <10inches screens, but what about running those apps on screens bigger than 10 inches through continuum. any idea if we need office 365 subscription for that?