xDai (STAKE)  will appear when u say that . amazon is going to release an app and its name is BlockScout . They anounced to will use xDai technologies on it also POA too . Its not a partnershipment . here is the article ;
https://aws.amazon.com/tr/blogs/awsmarketplace/build-and-monitor-custom-ethereum-tokens-with-blockscout-from-aws-marketplace/