You too are talking out of your ass. VirtualBox is _trivial_ to install. The developers offer binary packages for most distros (Ubuntu, OpenSuse, Debian, Fedora, Mandriva and a few others). All in all, VirtualBox is so much easier to use than KVM it's not even funny. And the funny thing is that even though KVM apparently has so many developers, VirtualBox still beats the pants out of KVM in most respects from my perspective.