1. First layer automatic synchronization across user's Primary LAN. no backup, just synchronization amongst all chosen devices across the LAN with intelligent conflict resolution thereby minimalizing user input requests.
2. Secure automatic online backup and either automatic/manual (choosable) synchronization through secure server either through services hosted by developer, or through private server using WebDav (similar to what XMarks allows users to do in synchro of bookmarks. Primarily used for computers device not used on the Primary LAN.