I think this might get problematic as symbolic links are very operating and file system specific.
FYI File shortcut is not really the same as a symlink but ntfs does have symlinks. ;-)
I was looking into this for something else and it seems that whis would be pretty compicated. Because you would have to make special cases for different operating systems AND different kinds of partitions. For instance, I don't think you can make a symlink on a fat32 partition (like a reader) on any OS.
But please, someone proof me wrong, i would like to have symlinking for books