So where to begin? Well, I’ll begin at the start: WP7 is a joy to use. It really just is. It’s the first mobile OS to try something radically different in the UI department for years. Everyone else these days (especially Android) builds iPhone rip-offs to varying degrees, and even the iPhone interface has a lot in common with the old old OLD interfaces found on the dumb Nokia phones of the 1990s. WP7 has an interface which provides just the right level of passively visible information and interactivity, and manages to do it with an elegance that no Android home screen filled with widgets will ever manage.