Does anyone know if Dropbox is capable of syncing package files on OS X (Leopard 10.5.5), such as an iPhoto Library, or a DEVONthink Pro Office database?

Will any changes I make within a DEVONthink database to a specific document, for example, result in Dropbox needing to re-sync the entire database? ...or will it be capable of just singling out the one document within the database that has changed, and syncing just that single changed document to my other machines?

Any suggestions would be greatly appreciated... Thanks!