My Nintendo News reports that Nintendo have sold a massive 650 million units of hardware in the last 30 years.
Between 1983 and March 31, 2013 Nintendo have sold 268.97 million stationary consoles and since 1989 when GameBoy was introduced they have sold a whopping 385.15 million handheld units. The total comes to 654.14 million.
Most successful is Nintendo DS that since its introduction in 2004 has sold 153.93 million units.