Many Android manufacturers developed their own custom UI skins on top of Android, especially with Gingerbread. HTC's is called Sense UI and Samsung's is called

Many Android manufacturers developed their own custom UI skins on top of Android, especially with Gingerbread. HTC's is called Sense UI and Samsung's is called TouchWiz. There's little doubt that earlier versions of TouchWiz looked much more similar to iOS than any of the other manufacturers' UIs (or the Android default skin), which is part of the reason this lawsuit exists. Whether this amounted to outright copying or deceptive business tactics is what this case will hopefully settle for once and for all.