Syncing DomainBrain over Dropbox
DomainBrain does not yet have any native support for sync your database across multiple machines. However, you can use DropboxAppSync to sync data for any application. This works great with DomainBrain.
CAUTION: Use at your own risk
While DropboxAppSync does work, it does come with its own risks. If you do not let Dropbox complete its sync before you open DomainBrain, the database can become corrupt. I recommend that you always keep backups of your database just in case.