NOTE: The data is about a day old right now - I'm working with my host to get more storage as this database has consumed my limit of 50GB at the moment. Please check back soon - it will be as updated as blockchain.info as soon as this is resolved.
Couldn't it be modified to spider the addresses each time? It would be a little slower, but it wouldn't take up as much space.
Frigging awesome app, btw.