It actually includes a simplified integrated database that is built on top of Amazon's SimpleDB. (Try going to Configure and then the Data tab.) SOAP is curre

It actually includes a simplified integrated database that is built on top of Amazon's SimpleDB. (Try going to Configure and then the Data tab.) SOAP is currently our best option for external data integration. We are also contemplating the best way to do modules for RESTful services and MySQL/PGSQL. Current concerns include data format/protocol discovery for the former and proper security for the latter.