Nokia was one of the founder of Symbian, aimed at developing and marketing a mobile OS. It had already a 48% stake in the company, and other shareholders were Sony Ericsson, Ericsson, Panasonic, Siemens and Samsung. Symbian is the market leader with a 60% market share. But with increasing competition from Microsoft (Windows Mobile), from Limo (Linux mobile open alliance) and specially from Google, Nokia needs to be more reactive. All shareholders, but Samsung, have agreed to sell their stake to Nokia for about a combined €264m. In addition, Nokia announced the Symbian Foundation to directly compete with Google' s Open Handset Alliance. The goal here is to create an open source platform and to offer free of charge the Symbian OS engine.