No, they're not. It's not even close. The kernels all come from different source code bases. The userlands are all different, though recent versions of Solaris have been getting more and more Open Source as optional add-ons. A/IX is an evolutionary dead end. IBM is now spending money on tuning the Linux kernel for big iron (as are the Japanese big iron companies).
As for Open Source being the most arrogant, well, we wrote it. We're proud of it. If you don't like it, don't use it and as a bonus, we'll refund you the money you paid for it.
As for Open Source being the most arrogant, well, we wrote it. We're proud of it. If you don't like it, don't use it and as a bonus, we'll refund you the money you paid for it.
It is a truism: You get what you pay for.
That is why I tend to agree with the MS guy who called Linux a cancer. XP is a cancer too, but that does not make Linux any less of one.
It is important to remember that while every OS sucks, some just remind you of that sad fact more often then others. Probably Linux will eventually evolve into something that will demand that the kernal be recompiled every time the machine is booted, you Open Sourcerers being the proud lot you are.