For many years, Microsoft has persisted with the fantasy that customers want the same interface on all their computers and devices. This fantasy persists despite all the evidence and logic against it.
… a large screen with a keyboard and mouse is a very different type of interaction from a much smaller screen with only your finger. The size of screen and available options for interaction demand different interfaces. Just in the same way that motorbikes and cars have different control methods because the handlebars and pull levers work for the bike while a wheel and pedals are better for a car. ‘Form follows function’ is something that designers, architects and engineers understand – but not at Microsoft.