Lifehacker takes a look at the ease with which you can make your Fedora 9 installation live on a USB thumb drive. You do not need Linux installed to do it (there is a Windows program), any files you already have on the drive will remain untouched, and any tweaks and settings you make will be saved for the next time you boot up. It takes three clicks to create such a system, and Lifehacker is enthusiastic about the whole concept.
Monkey_bites is also thrilled with the live USB concept, but also details another interesting improvement in Fedora 9: PackageKit. "Fedora 9 introduces a nice upgrade to PackageKit which allows you to treat all your updates the same whether they're RPG, UM or Apt," they state, "There's also a new feature that detects when you're missing a piece of software needed to open a file. PackageKit will pop up a window offering to install what you need (provided there's a free software package available)."
Linux.com has a longer review, and they conclude: