dragbox was mentioned in an article at linux.com on 21 April!
The article is a thorough description of dragbox and any and all of what it can do -- in short, dragbox is stripped. It is probably the best primer on dragbox on the net -- more user-oriented that what I've written so far, I suspect.
The article also comes with a couple of suggestions
Dragbox is only at version 0.3.0, and like any application still in early development, it has some limitations. Although its windows are listed on the panel the same as any open window, it would be less in the way if it were integrated as a drag-down display in the notification tray. A way to add formatted text -- perhaps in Open Document Format -- to a shelf would have the benefit of making Dragbox a multiple clipboard as well as a bridge between interfaces.
This request for more and for higher-level content formats is really natural, but it is a hard problem. The thing here is that there is no desktop-wide agreed format for anything more than a list of file and for text. AFAIK the high-level APIs for handling drag-and-drop and other similar technologies stop at that point. If we wish to go further we have to add custom content parsing, taking the complexity of dragbox to a new level.
The ability to save shelves for future sessions might also come in handy. Another simple enhancement would be to have the ability to click a directory or preview by default, instead of having to enable the option to view directories in a file manager in the preferences listed in the right-click menu. Those of us who regularly run a mixture of applications from different desktops would also appreciate the ability to use Dragbox with KDE or Xfce applications.
I'd say that these other suggestions are spot on. Saving shelves is already on the wishlist, but solving the user interface there could be complex. On other desktop environments, I'm not sure what to do about it since I know too little about it.
Still, these reservations aside, Dragbox is a simple but highly functional application that makes you aware of functionality that you never knew you were missing until you had it. Desktop users may find it a convenient multiple clipboard even if they never go near the command line. And if you are a person who moves regularly between the command line and the desktop, then 15 minutes of using Dragbox will probably be enough to make you wonder how you ever managed without it.
I am very happy with the praise Dragbox gets; I have to say that I have no idea whatsoever if anyone is using the application and how. Mail in if you use it and have suggestions! (see contact)