Today I’ll just remind you Sozi’s existence , has a plugin for inkscape. That’s free and easy to use, no need to code, just do it graphically.
Very nice to make « Prezi-like » presentations ; you can add video and audio if you want, but just be sure that your browser(s) implement it well ( actually i’m a bit slow under firefox, very nice with chrome )
The top should be to make it as there: http://svg-wow.org/blog/2010/08/14/camera/ but forget it, your « slides » won’t move like that;
but a bit harder to understand.
The good point for using Sozi is that it generates a SVG file , giving you the possibility to use it as a page, to implement it in a html page etc, etc…
There I call it with an iframe, as on sozi’s site ( http://sozi.baierouge.fr/wiki/doku.php ), to make it interactive and to adjust its size.
but you can also use this link to see it in fullscreen as an SVG page ( copy and paste in your browser) :