Originally a dominant innovative company in the smartphone market for business and government usage, with 43% US market share in 2010, the company's dominance in the US smartphone market has in recent years declined precipitously,
in part because of intense competition from Google's Android and Apple's iPhone. Due to such competition, the company's share in the US personal consumer market was reduced to 3.8% in 2013
The original BlackBerry device had a monochrome display while newer models installed color displays. All newer models have been optimized for "thumbing", the use of only the thumbs to type on a keyboard. The Storm 1 and Storm 2 include a SureType keypad for typing. Originally, system navigation was achieved with the use of a scroll wheel mounted on the ri