https://techcrunch.com/2018/07/12/microsoft-whiteboard-is-available-to-all-on-windows-ios-version-coming-soon/

Microsoft previewed White Board last May, alongside the new Surface Pro, eventually rolling it out in public beta in December. The collaboration app just went live to all Windows users, as part of the deluge of announcements tied to the upcoming Inspire conference.

Whiteboard is kind of digital sibling to Microsoft’s large Surface Hub display. The company describes it as an “infinite canvas,” in a phrase cribbed from comics theorist, Scott McCloud. With the drawing app, users can sketch out notes and images with a finger, keyboard or compatible pen.