Ryan Favro has created a cool proof of concept application for ordering pizzas online, with the entire customer facing application, and backend application, done in Flex 2. Having gone through the pain of ordering pizzas online from Pizza Pizza, this application is definitely a move in the right direction, even if it's entirely fake. The existing HTML applications that are used for online ordering are far from a pleasing end user experience, and as he points out in some of the comments, this would surely increase the customer satisfaction and coversion rates for online pizza shops.

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