Is this one based on Ubuntu?

OK, OK, don't push I was leaving anyway.

Bloody hell, so why the heck should I bother upgrading, I'm on version 3 and it does everything I need and it runs on less hardware and it doesn't need a fancy virtualisation layer to run apps and it doesn't have any of that DRM or UAC crud and...

Oh sorry, I've just been reading the Windows 7/Windows XP comments and got a bit confused!

Er, no. OpenBSD is derived from BSD (Berkeley Software Distribution) and predates Linux by a good few years. A certain Bill Joy was involved.

Linux derivative? *snort* You almost had me there, I had a flame all ready.