It is possible to create Gantt charts on the wiki using an XML based project plan description. Instructions are here: http://www.logilab.org/projects/pygantt/documentation and http://moinmoin.wikiwikiweb.de/ParserMarket/Gantt
Note: I've removed this feature for now, since it is extremely difficult to use. You have to painstakingly edit an XML file to create the chart and there is no GUI.
<project xmlns:pg="http://www.logilab.org/namespaces/pygantt_docbook" id="monprojet"> <label>Cytoscape</label> <task id="module"> <label>Testing</label> <task id="func1"> <label>Code Freeze</label> <duration unit="days">1</duration> <constraint type="begin-after-date">2005/08/15</constraint> </task> <task id="func2"> <label>Testing</label> <duration unit="weeks">4</duration> <constraint type="begin-after-date">2005/08/15</constraint> </task> </task> </project>