Nope, I haven't forgot how to type, but it is a new Java Library for game development. It provides access to OpenAL and OpenGL through Java.
LWJGL is designed to allow commercial quality game development in Java and represents many years of development. It's not a game engine in itself but provides the framework to develop them easily on Java. It is designed to work on anything with a JVM so it could be used in smartphones and the like.
It's interesting from the point of view that this would enable cross-platform development and hopefully give a platform like DirectX.