Bloomberg is reporting that social game maker Zynga is suing the makers of "Bang With Friends," a casual sex app, because it infringes on its trademarked "With Friends" line of games (Zynga Inc. v. Bang With Friends Inc., 13-03517, U.S. District Court, Northern District of California - San Francisco). Zynga has several games that use the "With Friends" descriptor including Words With Friends and Chess With Friends. The company believes that Bang With Friends sullies its trademark and causes consumer confusion.
In its court filing Zynga goes so far as to say that the company (also called "Bang With Friends") chose the name to take advantage of Zynga's popular trademark. Zynga is seeking an injunction barring the company from using the name “Bang With Friends” in connection with any social networking applications in the U.S. and unspecified damages.
Bang With Friends was yanked from Apple's App Store in late June, but is still apparently available on Google Play. The app is pretty straightforward: it allows users to "anonymously find friends who are down for the night!"