It did deploy on commit/push, bundled eggs, worked with mysql or sqlite and redis. Dunno if that sounds interesting to others though.
Basically, nginx fronts a bunch of Varnish caches, which are then in front of a "routing mesh", which queues up requests for individual "dynos". A dyno is a single-threaded instance of your application. When one dies or is migrated, another is deployed in its place. Multiple dynos are automatically spread across multiple machines. It's a very neat solution to automatically scaling hundreds or thousands of apps.
In other words, bundling the apps and pushing them out is just the beginning of a pretty fascinating architecture.
Talking to some other Pythonistas, there didn't seem to be much desire for a Heroku-equivalent system though - most ppl enjoy rolling their own deployments.