Fedora has the Smolt Project going, where they collect metrics voluntarily from users’ machines to learn where to focus their ongoing development efforts. The data is fun to peruse to get a sense of where folks are relative to you. I see I’m the only one running 1-version back of the Xen kernel, meaning I don’t reboot as often as the average, and that not too many people are actually using Xen yet. And here I thought I was behind the curve on that. To get Smolt on your fc6+ machine:

     yum -y install smolt