Agent Farms is a system for modeling and simulation of complex, multi-agent based systems. The system can be used for creating models of multi-agent systems, interactive and distributed simulation, observation and visualisation of the simulation, and population modification and migration. On those models one can learn about the evolution of strategies in the populations of agents.
My cOLLection manager is a text-based database program for your collections. It is a fast and easy to use front end for gdbm or Berkeley DB with a curses interface. Some other databases are supported. The program was originally designed to organize a large music CD collection, but it has no restrictions on the entry of any other large range of items. Its main goal is flexibility.
WinSwitch is a compact replacement for Apple's Fast User Switching menu on Mac OS X 10.3 that saves menu bar space by allowing you to show an icon, custom user picture, or short username instead of the full username, while faithfully replicating and improving the other features of Apple's menu.
Addresses is a GNUstep address book that consists of a full-featured address book manager application, a source-code compatible replacement for Apple's AddressBook.framework (for accessing and manipulating address data programmatically), a framework of view/editor classes that make it easy to use Addresses from your own programs, and a number of tools. It is easy to use by both users and programmers and can store almost all imaginable data, including multiple phone numbers, emails, and addresses, photos, AIM/Jabber/ICQ/Yahoo IM details, and notes. It supports drag-and-drop and integrates well with GNUMail.
Gomoku.app is an extended TicTacToe game for GNUstep. You win the game if you are able to put 5 of your pieces in a row, column, or diagonal. You lose if the computer does so before you. You can play the game on boards of different size. The game has 6 different difficulty levels.
AssignmentTracker X is a student-oriented assignment and grade tracking application for students using Mac OS X. It allows students to track their assignments and sort them, as well as give instant access to the students' grades and print detailed reports on the students' current assignments and grades.
iKeepAtive is a fitness scheduling app, designed primarily to help users schedule their workouts and integrate with the system calendar to make sure you do them. The application also has Calories tracking, diet tracking, and daily portrait tracking. The user interface is presented in a simple, 5-view design. It also includes BMI, BMR, and TDEE calculators.
Bean is a rich text editor with many niceties added to make writing convenient, efficient, and comfortable. It is, to use a horrible cliché, Text Edit on steroids. It uses Apple's NSText object to do most of what it does, but adds live word count, the ability to adjust printed margins, and lots of other bells and whistles.