A happy combination of deck.js (https://github.com/imakewebthings/deck.js) and jade (https://github.com/visionmedia/jade).
This is a deck.js boilerplate slide set with a bower install file for dependencies. Fork it and make quick online presentations.
To quickly try out presentations, I've used this with quickyJade (https://github.com/FuturaIO/quickyJade). To run:
npm install -g quickyjade
quickyjade