My job, at the moment, is to help do the legwork for people doing the real work on buzzwordy, web- based technologies. So, I'm looking at web servers, XML and XSL software, CORBA, etc.
And every single developer that I work with has expressed the equivalent of "don't even bother me with some proprietary crap, I want the good 'open source' stuff."
So, my sample is no doubt biased because we're a Unix-centric shop, but still, it's interesting ...
GNU does not eliminate all the world's problems, only some of them.
-- RMS, "The GNU Manifesto"