[atmosx]

I don't see any serious advantages for using GNU/Linux over MacOSX because I live in userland and I can get all my gnu utils and open source programs through MacPorts.

Linux is a programmer's paradise and you can basically whatever you wanna do with the system. IMHO the most serious lack is a set of good looking office programs and some lack of interoperability when you needed. On the other hand you get to have much more flexibility than any other OS out there.

Windows to me seems like a mobile OS. It's so restricted and the possibilities are so limited that's scary (DOS vs Bash/Zsh/any-shell + gnutools... comparison doesn't stand, no way).

[SEJeff]

Funny enough, thinks like Office 365 (the cloud enabled Microsoft Office that runs in Azure) and Google Docs are making this less and less of a valid point every day.