This is theme for the LaTeX Beamer class inspired by the Emacs Org-mode. It was created by taking the default theme and changing relevant parts.
Under Linux and TeXlive, just run make install. Alternatively, you can just copy all the .sty files into the directory/folder with your presentation.
Look into the beamerthemeorg-demo.tex file for a simple example. Currently, Org-style bold and italics are done using the \orgbf and \orgit macros respectively, so you might want to \renewcommand{\textbf}{\orgbf} and \renewcommand{\textit}{\orgit}.
This theme is more of a quick hack than a finished product (though serious effort went into it, especially the outer theme). Should you have any bug reports or feature suggestions (especially suggestions for options/variations in the visual design), feel free to email me.