Hi,
instead spending time actually making presentations my procrastinating
actually lead to the development of a very basic presentation framework
based on matplotlib. I know, that's the stuff everybody was waiting for 
https://github.com/Tillsten/MPLslides
An example presentation can be found under:
https://github.com/Tillsten/MPLslides/raw/master/example.pdf
To my surprise i think it actually usable. Features:
* native matplotlib support
* cheap css-like copy for styling elements.
* customizable layout
* that includes animated plots!
* text and enumerations!
* thanks to matplotlib, a lot of output formats are supported.
This is by no means a replacement for anything, but maybe
someone will have with it.
greetings
Till