I recently started an Open Source club at my school, and one of the key aspects of the club is that I (along with a few others) give quick tech talks. I found that it took far too long to whip up a short slideshow, so I wrote this. Its entire purpose is to allow you to get something presentable and interactive out quickly.
It's sort of a two-birds type deal because we'll be actively working on this project through the club :)
I'd love to hear your feedback!
But that doesn't mean there isn't room in the world for both projects. Pandoc strives to be a universal converter, and that means there are certain things it couldn't / shouldn't do. For example, you could add special kinds of slide effects or transitions to Cleaver's markdown dialect that wouldn't be appropriate for Pandoc.
With Reveal.js you can do:
<section data-markdown><script type="text/template">
#markdown slide here
Worth noting that I've also used the `slideshow` gem  back in the day. This does basically the same thing as this project, and with the Google HTML5 Rocks  theme it isn't bad as a 'just markdown to slideshow' tool, but it was a bit fiddly to get started and 1) that homepage is a big undersell with all the old crappy themes/defaults on it and 2) I think their version of the Google deck is now pretty outdated (was buggy when I used it). Still, worth looking into for Rubyists I think.
Coincidentally, I think some subtle animation would be great--maybe just have the slides slide in or out. They are, after all, slides :P.
I currently use a very similar tool written for Emacs's org-mode. Org-mode is incredible. I mostly use it for notes; the slideshows are just another nice feature. I think the results are quite good, given that it's just as easy as this except better-integrated into Emacs.
I put this presentation together at literally the last moment before speaking--I wrote the last slide just as the previous speaker was taking questions. Despite the bad timing, I think it worked reasonably well.
It's great, but I do sometimes have to modify the CSS for certain slides by hand. Happily, this is very easy, and I have never needed anything complicated.
I use a modified version of an elisp script written by some Googlers, but org-mode can output slides with a bunch of other backends like Beamer or S5. You can even use Emacs itself to give the presentation! I've seen a presentation this way and while the aesthetics are questionable, it confers an undeniable hacker panache.
I could understand features like code-highlighting for hackers.