addfs.com is inspired by the mount command in Unix OS. Just as mount command enables the ability of accessing multiple external devices using the same API i.e. Unix File System, addfs.com enables users to access multiple cloud storage (Box, Dropbox and Google Drive) through the same interface (HTML and Rest).
As you are asking for permission to access to people's personal / private files I think it's really important that the site comes across as very professional so that potential users feel they can trust the site with connecting the different services. Not sure if you are explicitely asking for feedback and ideas but this definitely the area I would work on - creating a polished feel, particularly on the landing page.
addfs.com provides users with the ability to access files kept in box, Dropbox and Google Drive in ONE window. Think of it as an online file explorer with ability to mount cloud storage (box, dropbox and Google Drive) and manage files (create, update, delete, view, and in future perhaps copy, paste or move files between clouds).
