That's cool and was very much needed. Good thing they decided to go with Ruby, which makes it possible to run cheaply on Heroku.<p>For those looking for an even more simple solution to this problem (with less features, of course), buy a domain name, host an HTML page on Amazon S3 and use the Mailchimp form.
If you're going to the trouble of setting up and deploying a Rails app, which you will then inevitably need to customise and style to match your content, how much more effort is it really just to start from scratch..? (Personally I'd probably use Sinatra for something like this and I would expect the front-end prettifying to take longer than the back-end...)
Forgive me but why go after LaunchRock? It seems like the point of LaunchRock is to serve people who wouldn't have the tech skills (or desire) to deploy a Ruby app, or possibly even a static HTML app by themselves?