Where the **** does Dropbox store your synced directory on Android? Or is the drop box app just a viewer of the cloud folder? Do I even need the DropBox app on the Acer since ES File Manager knows how to access the dropbox folder in the cloud ? I had this magical Idea I could sync all my ebooks with the Acer by must putting a copy of my Calibre directory in my Dropbox folder. While I can see the folder on line, I can't find it on the MicroSD or External_microSD card. Where did it go?