Symbian OS was designed for mobile devices, with associated libraries, user interface, frameworks and reference implementations of common tools, developed by Symbian Ltd. It was a descendant of Psion's EPOC and runs exclusively on ARM processors, although a non-productized x86 port existed.
Symbian Foundation, an independent non-profit organisation was established on June 24, 2008. The foundation began operating during the first half of 2009. Foundation membership is open to all organizations. Symbian OS and its associated user interfaces S60, UIQ and MOAP(S) were contributed by their owners to the foundation with the objective of creating the Symbian platform as royalty-free, open source software. The process of publishing the source code under the Eclipse Public License (EPL) was slated for completion in 2010.
There are many devices that used Symbian OS:
+ In 2000 we saw Ericsson R380, it was the first commercially available phone based on Symbian OS.
+ Nokia Series 80 (S80) e.g Nokia 9500 Communicator
+ Devices with UIQ interface used for PDAs by Sony Ericsson, Nokia and Motorola.
+ In 2002 Nokia S60 interface started producing such as Nokia 7650, Nokia 6600, etc. Until nowadays we are aware of Nseries (N95, N97, etc), Eseries (E51, E63, E71, E90 and so on).
+ Nokia Series 90 such as Nokia 7710 in 2004.
+ Mobile handsets using MOAP(S) interface: Fujitsu, Mitsubishi, Sony Ericsson and Sharp phones for NTT DoCoMo in Japan, using an interface developed specifically for DoCoMo's FOMA "Freedom of Mobile Access" network brand. This UI platform is called MOAP "Mobile Oriented Applications Platform" and is based on the UI from earlier Fujitsu FOMA models.
+ and more...
The Symbian platform is free and open to develop on - whether you're an enthusiast, web designer, professional developer or service provider. Symbian's developer program (developer.symbian.org) is a single point of entry for developer training, support and community involvement. More information you can read more at http://www.symbian.org/