Apple computer rejected an application for its telephone. The fact that they have funny notions about what its customers can buy is nothing new. What is of interest to me is that the Ninjawords dictionary is based on Wiktionary.
The argument used is that Ninjawords provides access to "other more vulgar words". When people ask me about vulgar words, I always argue that it has a clear benefit when you can learn what has been said to you. Particularly when it is also enriched with etymological information... I know that many people do not really know what they say.