OpenBSD: Goals (mainly achieved)

Secure, correct code

Usable system - sane defaults, complete and readable documentation (man pages, FAQ)

Free to use - short (2 paragraph) BSD license preferred (see http://www.openbsd.org/policy.html)

Also see http://www.openbsd.org/goals.html

By a small team: Approx 100 active developers (historically '~356 hackers'), see http://marc.info/?l=openbsd-misc&m=144515087006177&w=2