<p>Window-shopping could soon take on a whole new meaning. Imagine seeing a pair of shoes that you like on television or in a shop, then taking your smart-phone to take a picture of the shoes in question and buying them on the spot. Markus Karlsson talks to Dan Wagner, the British serial entrepreneur who wants to make that a reality with his new app, PowaTag. </p><br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en