Parallels running Windows XP on Mac OS X - intel-based iMac
A pretty example of ‘total switching’.
From the author’s note:Installed the Mac OS X beta from Parallels and demonstrated the speed of XP by reinstalling Firefox, surfing, and rebooting. Running on Intel iMac 2.0 Ghz (256 MB VRAM, 1.5 GB RAM, 512 MB given to XP)