Hi Jon & Leo,
if you guys sit at home on a rainy day and break your head about what to implement next, I got one for you. To make DOpus look nicer and to increase the "aaaaahhhh" effect on persons never used DOpus before, you could re-design the file operations dialog to make it more look like Win 8.1. You could add some graphs like copy speed, disk utilization or network utilization when copying to a remote drive.
...just as an idea.