It is true that "Linux" is not an operating system, but just the kernel (which is a huge requirement for the operating system to even function). And it is true that Linus wrote the kernel used on all "Linux based" operating systems. It is also true that GNU is significant and good. However, I get a little peaved by GNU making it sound like they are the "biggest" part of a system comprised of only the Linux kernel and the rest being "GNU". The "Linux based" distros of today include much more than the Linux kernel and the GNU utilities/software. Most apps fall under the GPL (even the Linux kernel falls under thet GPL) but being licensed under GPL does not mean they were initiated or born by GNU.
For instance, XFree86 is not GPL or born from GNU and to most "Linux Based" OS users this piece of software is as significant as the Linux kernel. It is an open source version of X Window System and licensed under something similar to the X11 license. KDE, a system that many "Linux based" OS users do most of their "user" functions with includes a powerful Window manager and desktop system with many applications, is licensed under the GPL but certainly isn't GNU software. In fact I would suggest that in most Linux distros GNU born software comprises a small fraction of the bulk of the code written for the distro. It is probably true that they would be the single biggest contributor but still be a small fraction of the overall.
Now, I have nothing against GNU other than they whine too much. It is not Linus' fault that people call an entire distro "Linux". In fact I do it myself because it is easy to say and most people I talk to know that I am referring to the entire OS even though Linux is just the kernel. GPL is good and in most cases I prefer it. But other licenses are better for other people, and maybe one day they will move entirely to GPL, that certainly seems to be the trend. However, I hesitate to bash other licenses and whining so much certainly won't help the cause. Enlighten people about the GPL and the philosophy but don't whine about who's more responsible and significant, something I hope RMS and friends do more of in the future.
[ September 16, 2002: Message edited by: void main ]