It could be an extension to the already available Persistence-Control or a complete Component of its own. There are OneDrive, Dropbox, GoogleDrive, Amazon Clouddrive, to just name a few and there are many more. In germany there are HiDrive, Telekom Mediacenter, web.de-drive. You can find more on http://www.cloudsider.com/cloud-speicher. It should provide methods to enumerate, upload and download files, create folders, maybe to download previews of files and file properties. Such a component would make a perfect fit to extend your great Richtextbox, Diagram and Spreadsheet Controls! So you could help many developers. But it should not depend on service like Teleriks everlive.