Topic summary
Symbian Ltd.
Extracted from the Wikipedia article Symbian Software.
Overview
Nokia created the Series 60 (from Pearl), Series 80 and Series 90 platforms (both from Crystal), whilst UIQ Technology, which was a subsidiary of Symbian Ltd. at the time, created UIQ (from Quartz). Another interface was MOAP(S) from NTT Docomo. Despite being partners at Symbian Ltd, the different backers of each interface were effectively competing with each other's software. This became a prominent point in February 2004 when UIQ, which focuses on pen devices, announced its foray in traditional keyboard devices, competing head-on with Nokia's Series 60 offering whilst Nokia was in the process of acquiring Psion's remaining stake in Symbian Ltd. to take overall control of the company.