Windows as we currently know it is useless on the touchscreen tablet form factor. We know this because Windows came out with tablets as early as 2002, (years before Apple released the iPad), and all of them were colossal failures. Windows is inherently a desktop OS. It’s gone through 15 years of refinement for the mouse and keyboard, and as a desktop OS, it’s great. What that Microsoft completely missed though, (and what Steve Jobs caught), is that as wonderful as desktop OSs are on desktops, they are terrible for touchscreen tablets.