Comment 3 for bug 770099

Brainstorming solutions:
 - Implement a fix for bug #111939 in 11.04.
 - Use a modifier key to inhibit the icon rearrangement mode, similar to the Snapping Windows Compiz plugin's Avoid Snap Modifier.
 - Detect that the dragged icon has crossed the target icon twice in a row, then open up empty slots on both sides (instead of just one side) of the target icon and halt the target icon's movement. The user could then choose to drop the dragged icon onto the target icon, drop it into either empty slot, or hover over any other icons to resume normal behavior.