Before discussing lawyers and how much they're going to cost... why don't you just contact the developers first to get their side of the story and their suggest

Before discussing lawyers and how much they're going to cost... why don't you just contact the developers first to get their side of the story and their suggested resolution? You're using really emotive language like "ripped off" and "taunt" and assigning malice to this without knowing the whole picture. To give them the benefit of the doubt, a developer likely made a mistake in understanding or checking your license. The mention of you being the author is probably their (incorrect) attempt to follow your license and not an attempt to taunt you. It's unlikely there was some conspiracy at the upper levels of Samsung to steal your code.