I'm pretty sure the last time that I ran BeOS was in '98, shortly after they ported to Intel (I strongly considered buying a PowerPC machine to run BeOS earlier, but couldn't spare the cash). And now, thanks to the review I read of Haiku today, I'm running BeOS again:

Haiku Alpha 1 in VMware Fusion on my iMac

So far, it's been fun playing, but performance in my VM has been lacking. If you decided to download the ISO and install it in VMware from scratch (like I did), you'll want to read this howto (specifically the part about bootman) and this page about tweaking the VMware vmx file to enable networking.

-Andy.