The Cloud Drive service include 5GB of storage for free, music backup support for Amazon MP3 purchases, and offers paid upgrades for additional storage.
Amazon gives Mac users a Cloud Drive app
Mac and Windows users have been limited, until now, to accessing their Cloud Drive content through a Web browser. With today’s app release, however, Mac users can upload files to their Cloud Drive account by dragging content onto a menu bar icon.
According to Amazon, the Cloud Drive app lets users upload files via drag-and-drop or via a contextual menu, download files, pause and resume uploads, and check to see how much online storage space is still available. That description, however, is a little misleading because the app includes a link to the Cloud Drive website where you can view and download files instead of directly supporting downloads in-app.
Cloud Drive is a free service, as are the Mac and Windows apps. The Cloud Drive app is available for download at the Amazon website.