- It's free, is playable on any web browser, and you can use it on linux.
- Creates zoomable presentations (like in Prezi) from SVG files you need to create first (e. g. in Inkscape). The output is a small HTML file running in every modern browser without Flash. Additionally, as Prezi uses SVG files, zoom is possible indefinitely and you won't get to see ugly pixels.
- Do presentation in the same way (zooming), very small output file to be run on a browser.