Basilisk is a full-featured middleware library to develop games. It features sprites, animations, real time sound mixing with filters and special effects, high resolution timers, a basic 3D math library, an input system based on bindable actions, fullscreen exclusive mode support, resolution managers, JDK 5.0 compatibility, and more.
CastCluster provides access to additional content on iTunes, Apple TV, iPod, or a random podcast viewer. It currently supports YouTube, Google Video, Revver, local disks, and RSS feeds as sources of content. It uses ffmpeg for video conversion. It also provides some other bookmarklet functionality, like digg and del.icio.us.
Entagged is a Java audio file tagger which uses the freedb online database for the retrieval of the tags. It supports custom file renaming based on the tags (with any directory stucture), as well as custom tagging based on the file names. MP3, Ogg, and FLAC are currently supported.