The real cost gap is in software--but, consumers don't really perceive this (yet). They don't realize that they've paid for the Windows operating system that's shipped with their computers. They do realize they haven't paid for the version of Office they're using-and that's because they know perfectly well that it's pirated. So Linux doesn't have much pull as yet. And it's not because the desktop environment is incomplete, or that there aren't enough applications, etc. It's because people haven't yet perceived that Linux is cheaper. But the pull picture is about to change. And that's because push is about to come into it. Big time