The Blackberry is a handheld wireless Personal Data Assistant (PDA) and communication device. It has a thumb keyboard and a wheel for navigation, as opposed to using a stylus like its competitors. This unit was owned by a law firm partner who arrived at the World Trade Center on September 11, 2001, just minutes after the first tower was hit. Using this Blackberry, he stayed in constant communication with his staff all day until he had located everyone.
Blackberry devices were also instrumental in the publication of the Wall Street Journal on September 12, 2001. Although their offices were vacated and their staff scattered, WSJ writers were able to use their Blackberrys to write stories and submit them to editorial staff as events unfolded on September 11th.