I have another idea for an improvement. I just now moved a few contacts over to the desktop. After that, I started arranging them, and found myself moving the contacts pixel per pixel in order to get them placed in a nice way. Took me quite some time.
What about some feature like pressing CTRL while moving them, and that Plus! moves them according to an invisible grid (like 10x10 pixels or something) so that I can arrange the contacts more easily ?
/ 
Suggestion for floating contacts.
