Presentations created using the HTML5 slides package here http://code.google.com/p/html5slides/ are, according to the web page, expected to work using touch devices. However, they are extremely slow, and don't reposition to the center, and are generally hard to use, in Native Fennec (current nightly). As an (ironic) example, see the site in the URL field.
Dang. Google Doc's presentations are some of the nicest generated HTML I've seen on the web. It helps that they don't minify or obfuscate at all I guess. But they actually polyfill for different browsers like real webdevs should! We do some incorrect things with the viewport here, but the touch events fire quickly. I think the problem is coming from something in the CSS. Trying to clean it up just now, I cleaned up to much and the problem went away.
Yeah, I think our problem here is a plethura of gradients and box/text shadows. Slightly reduced testcase that lets you toggle things no and off here: http://dl.dropbox.com/u/72157/slides.html The more advanced css also seems to break our preventDefault handling too, which kinda sucks.
I was able to reproduce this issue using Nightly (2012-05-08) Dev: Samsung Galaxy SII (2.3.4)