A friend once told me a quote that basically said "Linux is for Microsoft haters, BSD is for UNIX lovers."
While I want to see Linux more popular and more mature (kernel, RPM/InstallShield, X-managers, etc), my motive is not really to kill Microsoft. Microsoft sure can't kill Linux, so I don't feel threatened. Linux and Apache are free and have so many die-hard users that they will never die.
I see other commerical UNIX operating systems such as Solaris taking hold of the high-end business market such as a corporate web server. Think about it. How many people are going to use a regular desktop computer to serve thousands of web pages a day, on a 10 megabit network? My guess is none. I don't care if you are using Linux or Windows, you don't run the "real" web servers from workstations. You buy four-CPU machines with RAID arrays and gigabytes of RAM.
If Microsoft does include some new HTTP 1.2 protocol or certain IE-only extensions, one's first reaction is that of anger. But hold on: just because Microsoft includes some new feature, does that mean people either need or want it? Does anyone remember "Microsoft Bob?" That was a HUGE flop. Nobody needed it, nobody wanted it, everyone thought it was stupid.
Just make sure you are more concerned with Linux's well-being than Microsoft's failure.