1 - I know you are probably talking about the format but essentially, a folio in DPS Classic has now become a collection, the articles within the collections still represent the content2 - iOS, Android and Windows are the platforms you can publish to- We do not support the Kindle store- For book-type content, you want to use the ePub format, please see the following links:http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/digitalpublishingsuite/pdfs/DPS_and_ePub_FAQ.pdfhttps://helpx.adobe.co...