Pentaho Data Integration can be applied to a single file, to data from any number of sources, from spreadsheets to MPP databases, and also to MapReduce programming.
This app is a first step into a digital wallet and the next iteration of the app could well be the integration with the 400 million credit cards that Apple has now on file.
And while we're at it, ASUS' WebStorage also offers instant photo uploads, Microsoft Office Web Apps integration (so you can edit Office documents online using the official interface) and file collaboration.