Official Vista demo on an iMac

The Norwegian site VG TV has put online a Windows Vista demonstration video. Here's a still from the video:

As you can see, the whole demo has been run on an iMac. Hard to guess what on earth might have prompted this choice, for it sure will upset Microsoft's partners the like of Dell, as well as Apple who, despite its providing Bootcamp, undoubtedly prefers to see Macs running OSX.