Posted at Librenix: "I've written on this topic before but I keep running into the same misconception: that the IBM mainframe is a cost-effective
platform for Linux because over 40,000 instances of Linux have been shown to run concurrently on a modern mainframe.
That demonstration was effectively a gimmick. No, I don't believe it was intended as a gimmick; only that it was widely
misconstrued and, therefore, became indistinguishable from a gimmick in the media circus that resulted. It was depicted by the
media as a practical demonstration that one could replace 40,000 PC's running Linux with a single mainframe."