I recently moved off of Dreamhost in favor of Heroku. I have a few static sites I needed to move over and here's how I did it:
Basically, I'm using Rack with some extensions (rack-contrib and rack-rewrite) to serve up the /public directory. Nice and easy!
Update: Here's a different approach if you want to host directories http://github.com/manalang/heroku-directory-index
