I am in Linköping for Devlin 2011 where I will give a talk named “Git - Version Control You’ve Only Dreamt Of”. It is a one day conference organized by my friends at Responsive
I did the slides for this talk in ShowOff, which allows me to write my presentation in text and version it in Git. Firefox 4 supports SVG well enough for me to use it for all my images. This allows me to just save and directly use whatever I draw in Inkscape, no exports required.