Amazon has announced support for DynamoDB in the AWS Mobile SDKs.
The support for DynamoDB has been added for both iOS and Android, with high-level interfaces for Amazon DynamoDB, so it’s simple to store and retrieve data. Both SDKs come with sample apps to get you started. The iOS SDK lets you use Amazon DynamoDB as a persistent back-end for the Apple Core Data Framework.
You can check out the sample app showing how this is done here.
The AWS SDK for Android makes it easier for software developers to call an AWS web service API directly from a mobile application. Until now, if you’ve wanted to do this you needed to write the code to handle the HTTP connection, request retries, and error handling. You can see the sample apps here.