SWTBot is a Java-based functional testing tool for testing SWT and Eclipse based applications. It provides APIs that are simple to read and write and hide the complexities involved with SWT and Eclipse. This makes it suitable for functional testing by everyone. A set of assertions that are useful for SWT are provided, and you can also use your own assertion framework. A recorder and driver are provided for recording and playing back tests along with Ant tasks so that you can run your builds from within CruiseControl or other CI tools.
JGrit is a program that converts images from common formats (e.g. GIF, JPEG, BMP, and PNG) to source code that can be used to render the image on either the Game Boy Advance (GBA) or the Nintendo DS (NDS) system. There are already programs that do this, but none that play nicely with both Windows and Linux. It uses the grit command line tool as a backend.
retainCounter is an application that converts a simple [object release] into a NSLog(@"object retainCount: %i",[object retainCount]); [object release]; command. This is sometimes useful if developers wish to know the current count of an object before it is released, which makes it easier to detect memory leaks.
Openline is the open source version of Hotline. Hotline is a PC/MAC client/server application that provides users the ability to create and manage a desktop community. The application has file uploading and downloading, instant messaging, a bulletin board, threaded news, and public and private chat.