That's not what I'm looking for. Your data is still owned by an app, in your case Dropbox (from the perspective of your tablet experience). Note that you must f

That's not what I'm looking for. Your data is still owned by an app, in your case Dropbox (from the perspective of your tablet experience). Note that you must first go into an app (Dropbox) and push it to another app. You can't do the opposite, you can't pull. You can't, from Dropbox, pull in a document created in App X. If you're lucky App X has a "share" feature that you can send to Dropbox but that is not guaranteed. A lot of people think the file system metaphor is a bad one, but I can't think of an alternative that keeps the user in control of their own data.