I'm surprised by the number of people who don't like using technology for what it was invented to do: make your life easier.
That's my point - I don't see this being much easier or particularly valuable, considering I will always have to be highly competent with straight HTML regardless. To me, this is a mental switch with little payoff (handlebars + HTML is fine).
This is a JavaScript templating language; aside from the fact that I like Emblem's syntax way better, you can't use HAML for JavaScript templates unless you go the hacky/ugly hamlbars route.
