One thing: Plan9 http://plan9.bell-labs.com/plan9/ runs very slow on VirtualBox (2.2.0 r45846) Host OS Ubuntu Jaunty). I use VirtualBox with much satisfaction for years now. Especially Window XP runs blindly fast. »

Why not use Linux "build-in" KVM? And besides that, I'm not buying everyday a new machine. Once configured, it can run for years without shutting down. Before buying a new machine it would be smart, if they first check the Hardware Compatibility List. »