Hello, my name Wojciech Halicki-Piszko. I am here to introduce new free chess database - ChessX. It has been in development for quite some time (since March 2006). It is written in C++ using Qt 4. It works fine on Windows, Linux and MacOS X.
ChessX needs tests, ideas, developers and promotion .
You can download it from here. If you have any ideas, bug reports etcetera you can visit ChessX SourceForge project site.