This is neat. Thanks for making and sharing this.

So far I have been using site44 (http://www.site44.com/) to accomplish this already. I see that you guys have built some node apps to make deploying and rolling back easy, which is smart. I have found the way site44 works (it's a dropbox app that updates what's being served automatically when the dropbox folder contents change) to be very convenient.

It may be interesting for you guys to consider doing something similar.

Take care.