Potential 4G adopters in the UK not only need to consider the price of EE's plans, but also the thin coverage currently available. This is slowly being fattened up, however, and today the company has announced that by March 2013, it plans to extend its high-speed network to an additional 17 areas (to make a grand total of 35). Those 17 towns and cities don't include last week's stealthy activations in Derby,