...Integrate with Ruby On Rails, Merb or Sinatra applications that use ActiveRecord, DataMapper, CouchRest, ActiveCouch and so on. Communicate between your Flex/AIR Rich Internet Application and service providers using AMF, XML or JSON. Persist your data directly in Adobe AIR SQLite database or CouchDB without any additional infrastructure or intermediate servers. Deploy your RestfulX application on the Google App Engine and use Google DataStore for persistence. Synchronize your data between AIR SQLite and other service providers.