A TortoiseSVN Add-In for Delphi based on the Delphi Add-In for TortoiseSVN at tigris.org (http://delphiaddinfortortoisesvn.tigris.org/).
ANT4HG is an ANT task for HG, a distributed source control management system (http://www.selenic.com/mercurial).
Gameulate is a game engine. It is a fully customizable game engine. You can contribute if you wish.
The Pointrel System is an RDF-like triple store implemented on the Java/JVM platform, supporting related social semantic desktop applications to create, use, exchange, and organize informational resources for a reasonably joyful and secure world.