Pointless as you cannot currently use fedup with Fedora 16 or lower

It's a temporary thing. To be frank, fedup is being thrown together just as fast as possible - it's the main reason Beta was late. We shipped Beta as soon as fedup hit a basic level of workability, pretty much. You still have to point it at its initramfs image, it doesn't have a GUI, and it doesn't display upgrade process by default, and all the testing we gave it is that it successfully upgrades a stock F17 install. It is very much still a work in progress. The intent is that you'll be able to do multiple version upgrades with fedup in the long run, I believe.