While the features that Windows Phone 7 can call “exclusive” are few and far between, there’s at least one aspect of it that is absolutely, undeniably original: the user interface.Called “Metro”, the UI is so unique that it’s almost polarizing — you’ll know whether you love it or hate it within a few seconds. Microsoft is counting on finding a few more lovers in the crowd, it seems: they’ve just launched a browser-based WP7 simulator, seemingly tailored solely to sing Metro’s siren song to the wandering iPhone/Android user.