What are the advantages/disadvantages compared to Dokku (http://progrium.com/blog/2013/06/19/dokku-the-smallest-paas-...)? It is also based on Docker, super easy to set up on your own server and: Available today.
They may even share code in the end, but Dokku will remain focused on simple, single host deployments. Flynn is about a real, distributed system that could be used in production.
Since Flynn is really just a packaged collection of components (similar to Dokku), Dokku may just end up being a single host version of Flynn someday.