Retrieving FTP folder recursively
wget -r -l depth -nc ftp://host/folder –user username –password thepassword
iOS device backup location
in OS X: ~(your home directoy)/Library/Application Support/MobileSync/Backup/ in Windows XP: C:\Documents and Settings\user\Application Data\Apple Computer\MobileSync\Backup in Windows Vista, Windows 7: C:\Users\user\AppData\Roaming\Apple Computer\MobileSync\Backup