I'd love to go that way, but I've never managed to get backbone.js pushstate to work. And yes, I have noticed that Google doesn't like hash URLs. It's annoying.
But, that said, Google search traffic isn't a likely source of users, so I've not spent much time figuring out a solution yet. There are much bigger problems to solve before that. Like how to stop posting on HN when I should be working. :)