Actually, I keep my KeePass database in a 64MB TrueCrypt container in my Dropbox directory, and noticed that small changes propagate very quickly - it's definit

Actually, I keep my KeePass database in a 64MB TrueCrypt container in my Dropbox directory, and noticed that small changes propagate very quickly - it's definitely not syncing the entire 64MB every time the contents change slightly. I don't know whether this attests to Dropbox's amazing delta compression, or implicates TrueCrypt's encryption.