Hectic, at times frantic. London is the kind of place where getting around faster and standing in fewer queues has a great deal of appeal. The mobile operator O2 thinks it may have the answer - a mobile phone that allows commuters to pay for their tranport journeys as well as small ticket items like coffee, newspapers and books. Already sold? Well, at this point it's only a six-month trial involving 500 handpicked 02 customers. But with a host of partners including Nokia, Barclays, Visa and Transport for London - the hopes are high. Mike Short is O2's VP of R&D. SOUNDBITE: Mike Short, Research and Development Vice President, 02 saying: "The primary benefits of the trial are going to be around the user experience. It has to be easy to use. The second benefit is, we need to understand the security and trust that the customers have when using devices such as this." The phones come preloaded with 200 pounds for spending in participating stores and 50 pounds to use on travel. If...