I recently noticed that the structure of 16:http://redhat.download.fedoraproject.org/pub/fedora/linux/releases/16/Fedora/x86_64/os/is different from 17:http://redhat.download.fedoraproject.org/pub/fedora/linux/releases/17/Fedora/x86_64/os/Has something significant changed in the way that Fedora is packaged, and if so does this effect auto install tools that read from the os/ directory?  For example, virt-install. 
Fedora OS structure change
fedora;directory structure