[formatjam]

Actually I have the exact same idea like a few weeks ago. The potential for this idea is big. It can be widely used by small web apps (Chrome App). Instead of hosting a server and a database, every thing can be done and stored in the client, isn't that neat?

[yefrederic]

You should have a look at filepicker.io then

[ananddass]

as yefrederic pointed out you could use filepicker.io to build static js applications. We handle all the server side logic for you.