Obligatory link
here.
It is always good seeing a project brought up to speed with modern security practices, especially one like FreeBSD (the authors of HardenedBSD hope to have their security patches merged upstream with FreeBSD). I appreciate work like this, honestly, I do.
It goes without saying that OpenBSD has had this type of technology since release 3.3 (May, 2003), but hey, I'm happy to see the concept being adopted elsewhere.