Just had another look at Due Today and was quite impressed by the changes made since I last tried it. The control panel on the left is the best I've seen, and the overall UI is also clean and seems to have adopted some of the best ideas of some of the paid web apps out there.
Major props for implementing the drag and drop feature.
Suggestions? The star icon should just be a gold star, not red with a white border. Main body tasks should be in a larger font than the control panel. Not by much, just enough to distinguish the difference.