From 2002 BlackBerry models featured mobile phone functionality.
PDAs appeared to be fertile platforms to experiment with hybrid variants. In 1999 Research In Motion (RIM) introduced a PDA annex two-way pager named BlackBerry 850. The device supported email, limited HTML browsing and featured a monochrome screen. From 2002 BlackBerry models featured mobile phone functionality. The BlackBerry still used a physical QWERTY keyboard and became a hit amongst business executives because of its secure email server.