I'm a self-described operating system junkie. At home, I've got WinXP, Win7, OpenBSD, OS X, Haiku (BeOS), FreeBSD, Solaris, AIX, and a few Linux flavors running. Yes, all at once. Maybe I should try plan9 again in a VM.
Currently, my most powerful machine is my MacBook, which dual-boots OS X and Windows 7 natively. I probably use them about the same. I run a lot of things in VirtualBox, though. I almost always have an OpenBSD VM up and running, for example. My two lower-powered desktops are running Solaris 10 (Sparc) and Ubuntu Karmic for the time being, but Ubuntu is kind of in the dog house right now. I've had good luck with ArchLinux in a VM, so I may throw that on there soon.
http://en.wikipedia.org/wiki/Sam_%28text_editor%29
I'm a self-described operating system junkie. At home, I've got WinXP, Win7, OpenBSD, OS X, Haiku (BeOS), FreeBSD, Solaris, AIX, and a few Linux flavors running. Yes, all at once. Maybe I should try plan9 again in a VM.