Firstly there are a lot of people who are using Samsung phones. Secondly, I believe other Android phones also come with keyboard that has Swype features. My nexus 4 has the feature and my friend 's HTC has it too. Thirdly, a lot of keyboard apps in Play store basically does the same thing (i.e. Slideit, SwiftKey and touchpal). Basically, almost everyone who use android phones Swype sometimes.