Where have I seen this before? (Hint: not at MS)
"...a single operating system that will run on everything from the largest screens – 80 inches in size – right down to embedded devices such as life-support systems..."
That would be the Linux OS wouldn't it? Already used everywhere from phones (Android), routers and the Raspbery Pi all the way up through servers and cloud providers (e.g. Amazon) to the largest supercomputers.
Just saying......