GoboLinux is available as an ISO image which you can burn to a DVD or write to a USB drive. You can check out GoboLinux using this "live" environment, that contains a runnable system (with a graphical user interface, an internet browser, etc) and an installation wizard.
This is the most recent preview of GoboLinux 016, for x86_64.
This is the latest stable release, for i686.
Release notes are available here.
All feedback is greatly welcome. Please give it a spin and report any problems in the gobolinux-users mailing list.