Defaults Manager is an editor for the User Defaults preferences database on Mac OS X. It allows you to easily view, edit, delete, and backup preferences, and can be used to view and change the preferences in almost any application. It is useful for developers that want to make sure their preferences are being stored and changed correctly, and can be used to unlock features that previously required the use of Terminal.
Delicious Library is a home library system featuring creation of digital shelves for books, movies, and CDs, support for barcode scanning using an iSight or Bluetooth barcode scanner, automatic downloading of information about the scanned media from Amazon (including similar items, user reviews, etc.), the ability to track items lent to people, the ability to send recommendations about a book to friends, and much more. It features a slick, easy to use interface with high-res downloaded images of the media, making it look almost like a real live bookshelf.
Democracy Player is a cross-platform Bittorrent-enabled RSS aggregator with built-in video playback that seeks to make watching Internet video from a wide range of sources as easy as watching TV. It is part of the Democracy Internet TV platform, which includes the torrent-enabled RSS publishing application Broadcast Machine and the video bookmarking site Videobomb.com.
DesktopLyrics is an application that displays the lyrics of the song currently playing in "iTunes" right on your desktop. The lyrics for the song have to be set in iTunes; DesktopLyrics does nothing to fetch them if they aren't available in iTunes. If you don't want to set all your lyrics manually, you can use an application like "Harmonic".
DevelKit Framework is an GNUstep/Cocoa framework with tools for reading, understanding, and generating source code from other applications. Its goal is to allow applications to generate code from non-textual representation, such as diagrams or other kinds of descriptions. Example features: an ObjectiveC source reader and generator, a project builder class, source structure related classes (class, method, and instance variables), templates, a tool for automatically generating accessor (getter ad setter), dealloc and archiving methods (interface and implementation) for a given class, and more.