Very cool project OP.
@uniclaude: the HTML page on S3/CloudFront and MailChimp direction is built into my project called Gulp AWS Splash, which is another LaunchRock open source alternative at https://github.com/niftylettuce/gulp-aws-splash. I did a similar Show HN not long ago for this.
Adding in Heroku 1-Click Deploy and purify-css today!