What people often forget is that same war had a design dimension: Microsoft’s UIs were built around the idea of being able to find multiple ways to the same point. Thus, you had a start button and an application button and a list of recently opened apps. To some extent, Apple has begun moving in that direction with little features such as the Launch Pad. But Apple’s overriding philosophy has always been that everything you want to do within a UI should have only one path for getting there.