That slide above is no joke -- it comes from a marketing webinar put on by two companies that supply Verizon, AT&T and Vodafone as clients, and it describes a system that identifies customer internet activity and charges a different rate for using Facebook than watching YouTube, while allowing access to Vodafone services for free. Yes, that's basically the nightmare scenario for net neutrality advocates. The two companies behind the slide are Allot Communications and Openet, which sell subscriber-management tools to carriers around the world -- tools that Allot's director of marketing says can scan even encrypted packets to determine what service customers are using and charge accor