Most of the time project managers would like to compare planned start & end dates vs actual start and end dates in gantt view. This feature is not supported by current Gantt chart. What I'm envisioning is something similar to the implementation of Gantt chart by Fusion Charts. (http://www.fusioncharts.com/charts/gantt-charts/). Displaying delays in actual task compared to plan would be an an added advantage. This feature may be implemented using a task template, but it's nice to have feature in the control.