In one announcement, AT&T has nearly doubled its LTE coverage by officially flipping the switch on eleven new markets. The list of cities includes New York City metro, San Francisco / Oakland / San Jose, Los Angeles, Phoenix, San Diego, Raleigh and Austin. We’ve seen the service flicker on and off in most of these cities as real-life tests were conducted, and the high-speed connection’s also been available in certain parts of New York, but it’s great to see these become official. AT&T also declared that LTE expansion should be complete by the end of 2013, though we expect most major cities to be hit far earlier. Check out the full press release for more details.