FreeSBIE is a LiveCD based on the FreeBSD Operating system, or even easier, a FreeBSD-based operating system that works directly from a CD, without touching your hard drive.
You can download new version here.
Mayank Sharma has posted a review:
Last year the Italian FreeBSD user group, GUFI, rekindled the FreeSBIE project to develop a live CD based on the FreeBSD operating system. After more than four months of development, and an equal number of beta releases, the project released FreesBIE 2.0 this month. Codenamed Clint Eastwood, the live CD is based on the recent FreeBSD 6.2 release, and is an ideal platform to experience BSD and learn how things are done in BSD land.
The 668MB ISO image installs more than 1.3GB worth of software. Included in the 450 packages are the Xfce and Fluxbox desktop environments, Firefox Web browser (version 184.108.40.206), aMule P2P client, Gaim and XChat for instant messaging and IRC, Thunderbird email client, AbiWord word processor, Gnumeric spreadsheet, Xpdf for viewing PDF files, MPlayer (along with several themes) and Beep Media Player for video and audio playback, GIMP for image processing, Inkscape for vector graphics, and GQView and gThumb image viewers. The necessary codecs for playing MP3 are also included. Network administrators get the gFTP application and several network monitoring tools, including Ettercap, Wireshark, and NmapFE.
=> Download FreeSBIE 2.0 Live CD