I have 30 years of experience in software development, with a computer science degree from the University of Illinois. I applied for a position at SEOmoz a few months ago. No phone screen interview. The CEO's comments seem to imply a very selective criteria was used to hire, and that it took them months. We don't know what criteria was used by SEOmoz to hire those candidates. I found his comments regarding older people slower to learn new stuff "enlightening".
Heh. Yeah, I guess if you a priori assume that anyone over 29 isn't going to be hired, you're necessarily going to have a much longer search for a new hire...