The banking world is dominated by a handful of really big, really old corporations that make it difficult for newcomers to gain any ground. That hasn’t sopped Atom from trying, and despite numerous difficulties involved, the startup managed to secure its banking licence this week and is expected to open itself up to customers by the end of the year. What makes Atom different from its competitors is the fact that it’s almost entirely mobile-based. While support for desktops is going to come in the near future, Atom wants to be an extremely mobile-centric banking service where practically everything can be done from your smartphone or tablet.