Nexty is a easy to use To-Do list manager created in PHP. This tool adds a few of my concepts with the generally held concepts of GTD. It can be installed in a local server or in a online web server.
This software is in beta stage - so expect some breakages here and there. I will try to release a stable version by the end of this week - by 10th February 2007 - but no promises.Get the code from the project page of nexty at Sourceforge.