The world at his thumbs.
President Obama is credited with using and leveraging the technology in order to win the US Presidential Election. Blackberry was one of his indispensable tool. After the election there were questions if he can break a White House tradition and keep his tool.
It looks like Blackberry addiction is so strong that it cannot stay outside of the walls of the Oval Office. Now the entire world is reachable at his thumbs.
A stormy technology in the hands of a stormy leader during stormy times.