Could the days of servers at pizza restaurants be numbered? Pizza Hut has designed an interactive touchscreen "concept" table, at which customers can design and order their own pies. Diners "sign in" to the table using their smartphone, and can then choose their size of pie, sauce, cheese and toppings and add sides before making their order. While they wait for their food, they can play games on the table, using it like a giant tablet. The concept table was devised by Austin-based designers Chaotic Moon Studios.