Connecting Portfolio Server to Amazon S3 Repository Images


We currently have Portfolio Server 11 Professional and are in the process of developing a gallery section on our website organized by product keywords and product numbers. The images displayed on our e-commerce website are hosted in an Amazon S3 repository. The images in the gallery will link to various tagged galleries but also provide direct links to the product pages of the products shown in each image.
Through the Portfolio API is it possible to connect to an Amazon S3 repository of our website product images? We need to be able to exchange tagging and product numbers between our Amazon S3 repository, our MYSQL / PHP database, and our Portfolio interface. Does this require an upgrade to the Enterprise edition? Have anyone built a system like this?