I work on Cloud Foundry, a competing system. Flynn is unarguably ahead in certain features (and vice versa, in my biased opinion). I agree with the thrust of y

I work on Cloud Foundry, a competing system. Flynn is unarguably ahead in certain features (and vice versa, in my biased opinion). I agree with the thrust of your comment here: rolling your own PaaS is hard. Just plain old hard. There's so much, so damn much that you wind up having to do. Before I worked on CF I worked in Pivotal Labs. I got to see various custom home-grown PaaSes. Some were brilliant. Some were terrible. Every single one of them was a millstone. A lot of people don't realise it yet, but the Linux of our time has been written -- in the sense that nobody writes an operating system if they're not in the OS business. I don't know if it's going to be Cloud Foundry, or Flynn, or OpenShift or some mix of these, but we have already passed the point at which it makes rational engineering sense for the 99% of engineers to build their own. Disclosure: I work for Pivotal, the majority donor of engineering effort to Cloud Foundry.