Symbian OS is an operating system, designed for
mobile devices, with associated libraries, user interface
frameworks and reference implementations of common tools, produced
by Symbian Ltd.. It is a descendant of Psion's EPOC.
Symbian is currently owned by Ericsson, Panasonic, Siemens AG,
Nokia, and Sony Ericsson. Whilst BenQ has acquired the mobile phone
subsidiary of Siemens AG the Siemens AG stake in Symbian does not
automatically pass to BenQ - this will need the approval of the
Symbian Supervisory Board.
for more info, pls refer to wiki
Symbian
Wbsite
