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.
Popup is an interactive learning aid for pairs of words. It behaves much like a stack of flashcards, but handles one-to-many and many-to-one word relationships better. It features an editor for cardstack files with support for copying and pasting groups of words, as well as drag and drop. It has two quizzes. One for memorization, and one for spelling practice.
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.
JLM image viewer is able to view standard image types as well as JLM and PLM image types. It is also able to lighten or darken an image using a "lightspace" technique. The technique is equivalent to changing the exposure time of the camera which took the image. The lightening or darkening method is generally considered superior to techniques found (such as gamma correction) which are found in image manipulation programs such as photoshop or the GIMP.
PodSafe is a podcast aggregator client. It allows you to subscribe to RSS feeds of podcasts and update those subscriptions to check for new files. The new audio files are downloaded and added to a playlist in iTunes, which you can easily sync with your iPod. It also checks for files that have been listened to and deletes them, making podcast management transparent.