The number of Symbian phones on the market should more than double in the next five years but won't have much of an impact on important rivals like the iPhone, a new study from Juniper Research said. Shipments should swell from 87 million phones from Nokia, Samsung and other Symbian supporters in 2009 to about 180 million by 2014. The expected increase is credited to a larger push towards partly or completely open-source code on phones. Combined with Android and LiMo (Linux Mobile) devices, about 223 million open-source devices should ship in 2014 as a result.