The Spring Data SimpleDB module aims to provide a familiar and consistent Spring-based programming model for Amazon SimpleDB while retaining domain-specific features and capabilities. Key functional ...
Amazon SimpleDB, Amazon SQS, Amazon RDS and Amazon VPC. "If you have existing Reserved Instances your hourly usage rate will automatically be lowered to the new usage rate and your estimated bill ...
DynamoDB was announced by Amazon CTO Werner Vogels on January 18, 2012, and is presented as an evolution of Amazon SimpleDB.