Finally released to the wild under MIT licence md2pptx Markdown To PowerPoint Converter.
For those of us who like to make things out of text - and yet get non-text outputs - this might be of use. I use it every day, of course.
I would note the Markdown is a subset of real Markdown and the parser is a little naïve. However, anything you write in this flavour of Markdown should pass muster with MultiMarkdown.
I also added the ability to leave Taskpaper tasks in there - and get a task slide or two at the end.
Contributors, of course, welcome. Issues to the GitHub issues page, please.