Durin focuses on web3.storage gateway at this moment. AFAIK, using this provider requires the authorization for HTTP requests, also limits the storage usage, and ensures the content pinning feature. It doesn't seem to be a new thing added to the protocol but a mobile application supporting interacting with an IPFS gateway via HTTP requests. With current features I saw in Durin for Android, my uploaded content list isn't able to be synchronized across my devices. Anyway, it's prospective in bringing the protocol into mobile devices. Cannot wait to see how far we'll go.