Thanks to a powerful physics-engine, your icons will be moved like real objects that you can touch and move as on a real desk.
Put the icons you use the most together, let in a corner the ones you don't use or delete them by throwing them to the paper bin. Real Desktop Light is fantastic.
Of course, have fun by moving the elements on the table as if they were real objects on a real desk. Finally, you can choose different designs for your desk: Glass, wood, plastic,... Enjoy a new desktop and add it a 3D look.