Jonathan Stark is a mobile consultant and web evangelist who believes that wireless computing will transform every aspect of society. Jonathan is the author of three books on mobile and web development, most notably O'Reilly's Building iPhone Apps with HTML, CSS, and JavaScript which is available in seven languages. His Jonathan's Card experiment made international headlines by combining mobile payments with social giving to create a "pay it forward" coffee movement at Starbucks locations all over the U.S.