Windows will now consist of two very different user experiences bound into a single package. The idea is it’s a one-size-fits-all operating system, which can run on everything from older, mouse-driven PCs to touch-controlled tablets without compromise. Everything from a touch-based weather app to mouse-driven Excel will run on it. That’s a big contrast to Apple’s approach, which uses separate operating systems for its iPad tablets and more standard Mac computers -- Source: AllThingsD Users will have to learn to click on the Windows key. Look - now it looks just like Windows 7 desktop. Click again and it is the start page. Pft. Done. End of training.