BlackBerry is a line of mobile e-mail
devices and services from Research In Motion (RIM). BlackBerry is a complete package that includes airtime, software
and choice of BlackBerry mobile device
. BlackBerry is currently available in the United States, Canada and the United Kingdom.
In the United States and Canada, BlackBerry depends on either narrowband PCS 800 MHz DataTAC networks or narrowband PCS 900 MHz Mobitex networks. In the UK, BlackBerry works over GPRS networks.
BlackBerry’s popularity may be attributed to its easy-to-use interface and keyboard.