I find background pictures and patterns distracting. I would love to have a black/dark Windows theme, complete with File Explorer.
In Win 8.1 if one changes the desktop background to solid...
What is special with the Surface Edition of the Arc Bluetooth (dongle-less) Mouse? It is 20€ more expensive in Germany.
Still no end-to-end encryption for OneDrive :-(
Private files should only be stored in the cloud when encrypted on the client with a key controlled the user only.
For an in depth discussion of high-resolution aspects on Windows see Anandtech "Scaling Windows - The DPI Arms Race"
Large OneNote tiles now show the page name. Before this one could not distinguish between different pages pinned to the start screen.