This is an upcoming app that is targeted to the Education Market. Very simple UI with lots of easy to understand capabilities. Has built-in shape recognition. Automated graph creation by writing out the equation. You can insert images from Bing. You can then share the white board with other people easily. You can also share the same board with off-site individuals as well for collaboration.
Microsoft originally introduced this in May 2017. It was designed to work with Surface devices and provides two-way inking for windows 10. Currently in private preview for Surface Hub devices, the new whiteboard includes collaborative inking, geometry recognition, table conversion, and automatic table shading. It’s really designed to let people share ink across multiple devices, and will be available on all Surface devices later this year.
*Note that collaboration features require Office 365 business accounts with OneDrive for Business, and are only available on Surface Hubs at this time.
No information that I can find when it will be available for other Surface devices or on Windows 10 generally.