I would like to have a progress bar for each task that i could slide across to give a rough idea of progress towards completion.
Rather than tasks being still to do or completed a drag across progress bar would give a quick visual representation of tasks and projects which were half done, only need a bit more for completion or are still in early stages.
The main task could show the progress of the sub tasks as a progression bar or a simple fraction:
Make bday cake 3/5
Sub tasks ; 3 of 5 compleated.
If there were a way to connect levels of the status bar to pre-set sub-tasks to show varying levels of completion as well, it would be absolutely ideal.
Oh, I like that!!! Much more intuitive and easier to measure progress at a glance. I would also suggest that the progress bar could even have a color gradient to further add to the "at a glance" value.