They are suing their biggest competitor, yes, but I'm not the only one who thinks Samsung made a few models with a UI that looks like they knocked off iOS. WP

They are suing their biggest competitor, yes, but I'm not the only one who thinks Samsung made a few models with a UI that looks like they knocked off iOS. WP and WebOS might be bit players, but they have novel UIs that are actually good and arguably better than iOS. In particular, WebOS had the best notifications. WP and WebOS prove Apple's notion that it is possible to compete without an 'iPhone Skin'.