Boxes and shelves for folders.

i like your idea of shelves and folders.....
improves the oranisation of your files....
having a shelve for "work" and for "private" and so on. and in these different shelves you have different folders. in your "private" shelve you could have a folder for: fotos and one for movies and so on.....

I think the boxes idea will work best because of the shape of the bumptop deskspace. It is essentially a box, meaning moving from the desktop to a box on the desktop is as simple as zooming into another box. So, creating a new directory could be creating a new box, and each new box should have within it a 'back' object, which is undeleteable. Shelves are possible already with some workarounds and I don't think the ideas of drawers and trays hold much weight because that would require desktop real estate be split up further (and this being a physics based desktop management system, I am seeing icons falling off this desk, constantly :P )

I would really enjoy being able to add shelves or boxes. No opinion to the non-functional generic deskspace items though.

I just had another idea related to this. Similar to a pile, you should be able to view the contents of a box by stringing it out (and the animation for this could be to just click inside the box and drag out)

I love the idea for shelves and folders. Would make it look even better!