... announced last Friday, is the one entry in the panoply of open source operating systems that currently doesn't seem to be on too many radar screens. However, I suspect that will change sooner rather than later, since OpenBSD has been focusing on one particular set of features that other OSes -- open source and otherwise -- are frantically working to add.
OpenBSD's claim to fame is its focus on integrated security and cryptography. To this end, the OpenBSD developers spend a substantial amount of their time auditing the core OS source in an effort to find and fix bugs with security ramifications before they're actually exploited.
News: Security Sources
