DnD to and from the host OS was what finally got me to abandon Thunderbird for 100% Gmail.<p>Now if they can just get the clipboard support to work a little better so you can do things like copy a region of the screen and past into an HTML app. It doesn't quite work yet.
These slides are a great distillation of and addition to the HTML5 Rocks Native HTML5 Drag and Drop tutorial[1]. Nicely done.<p>[1] <a href="http://www.html5rocks.com/en/tutorials/dnd/basics" rel="nofollow">http://www.html5rocks.com/en/tutorials/dnd/basics</a>