MirOS BSD is a secure, desktop-oriented operating system from the BSD family for 32-bit i386 and sparc systems. It is based on 4.4BSD-Lite (mostly OpenBSD, some NetBSD®). MirOS BSD is one of the new BSD-based distros intent on improving the user experience of a BSD operating system, and making it more appealing for new users.
TrueBSD is a LiveDVD operating system based on FreeBSD with many useful applications. All open programs will keep working even when you eject LiveDVD (using command cdcontrol eject) in order to get some data from your own CDs.
PC-BSD is a desktop-oriented distribution built atop FreeBSD. It provides all the goodies of FreeBSD for the desktop user, using primarily the K Desktop Environment. It is the most active BSD-based desktop distributions available, and its development is funded by iXsystems, Inc.
DesktopBSD aims at being a stable and powerful operating system for desktop users. DesktopBSD combines the stability of FreeBSD, the usability and functionality of KDE and the simplicity of specially developed software to provide a system that’s easy to use and install.
OpenBSD is a multi-platform 4.4BSD-based UNIX-like operating system with a near-perfect security track record – only 2 security holes since it was first released more than 10 years ago. Aside from the operating system, the OpenBSD teams is also responsible for OpenSSH, OpenBGPD, OpenNTPD, and OpenCVS
NetBSD is a free, secure, and highly portable Unix-like Open Source operating system available for many platforms, from large-scale server systems to powerful desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent in both production and research environments, and the source code is freely available under a business-friendly license.