The deal is valued at $410 million.
The move leaves Apple and RIM as the only major proprietary mobile platforms. And no, they don't have all the market share, because Symbian also made the software used by Sony-Ericsson, Samsung and Motorola phones.
Nokia had owned 48% of Symbian, which is based in the UK, and the other major hardware makers owned the rest.
The foundation will control a number of popular mobile technologies -- the S60 push-button interface, Sony-Ericsson's UIQ for pens, and DoCoMo's MOAP for Japan.
Membership in the foundation will cost $1,500, and it will have to sell services to those members in order to have any kind of budget. A news conference is currently taking place.
Combine this with yesterday's Google delays, however, and it's also clear that carriers have the whip hand in mobile device development. Regardless of operating system or busness model.