It's mostly pretty pictures so is probably only of any use as an example of a presentation written with showoff.
You can view this presentation if you install version 0.0.5 (or perhaps later) of the showoff gem.
$ gem install showoff $ git clone git://github.com/mocoso/showing-off-with-ruby.git $ cd showing-off-with-ruby $ showoff serve
And then open localhost:9090 in your browser.
Press 'p' to get the slides to change automatically every 20 seconds.
This presentations is released under an attribution and non-commercial Creative Commons License.