I use both Windows and OSX, plus have used OS8 and OS9 in the past. One thing I liked about the MacOS' is that upon loading/mounting a drive (USB flash drive, external drive, CD/DVD, network drive, etc) that an icon would show up for it on the desktop. What I didn't like, however, is you could never choose where they would show up initially - they'd just pop up in the first available spot starting from the top right and going down and to the left from there.
Adding that feature (drive icon to desktop) with Fence's organizing (dictating where it would go) would be perfect. At least for me. I'm already using Windowblinds to replicate OS9's window folding (something I miss in OSX). Adding this would be another step in customizing my Windows 7 machine to be exactly how I want it - my favorite parts of Windows and MacOS (Superbar >>> Dock for me).