I've just started using Dotcloud for some Django projects, and I just want to say I absolutely LOVE how easy it is to set up apps, databases, etc, <i>despite</i> the beta state and the limited documentation at the moment. Highly recommended.
Two quick updates I'm going to put in the blog post: Know that the server times are in UTC, so your cron schedule needs to be in UTC. Also you need the RAILS_ENV to be set to production in the scheduler as well as the worker.