Worth noting is that they originally were not. http://techcrunch.com/2013/03/15/mailbox-cost-dropbox-around-100-million/ http://techcrunch.com/2013/03/15/mailbo

Worth noting is that they originally were not. http://techcrunch.com/2013/03/15/mailbox-cost-dropbox-around-100-million/ http://techcrunch.com/2013/03/15/mailbox-cost-dropbox-around...