FAIL - apparently the presentation does not work properly for half the commentators here. The world is clearly not ready for HTML5 (not everyone uses chrome's flavor of it either) yet so make it work with other browsers as well.
Well, a big problem is that you're got a pretty huge sampling bias there. The people that it works for aren't going to comment to say "it works!" because that's the state that they expect it to be in.
It works fine for me -- Firefox 13.0.1, so it's not just Chrome-flavoured html5.
As well as the sampling bias pointed out by jdpage, the breakage is also the fault of this particular HTML5 presentation framework – it is not necessarily the fault of HTML5 as a whole. The page’s user interface could make it clearer that there are more slides and show you how to go to them – for instance, by showing the invisible buttons along the side on page load. And it’s possible that the JavaScript could be written more compatibly, and have better fallbacks for when the browser doesn’t support certain things.
