One of the things that has always stopped me from completely replacing the windows taskbar is that you cannot drag files from an explorer window to a document.

For example, if you wanted to drag a jpeg into a document in Illustrator (and Illustrator was minimized) using the windows method, you drag the file from explorer to Illustrator in the taskbar and it will popup ready for you to drop it in.

You can open a file in this way in OD, by dragging the file to the app shortcut, which is quite cool, (but not really that useful because you would just double-click on the file itself.)

I'm on about actually placing the jpeg within a document that's already open.

If you enable "display open widows" on dock contents, and drag the file to the minimized icon on OD, nothing happens.

I know the obvious way to get around this, is just to have the Illustrator window maximized behind the explorer window and just drag the file over. But when you're working with lots of different windows, minimizing and maximizing all over the place, it's a bit annoying.

This may be an idea for a future feature.