Nokia acquires Symbian.

see: Symbian Goes Open Source - Courtesy of Nokia
"Nokia have today announced that they will be acquiring the remaining 52% of Symbian they don’t own and will be releasing the complete Symbian platform under the Eclipse open source license. Nokia have also announced the creation of the Symbian Foundation, which is an alliance of mobile vendors and application providers that any company can join... Current mobile handset market share statistics depend very largly on who you ask and which classification is used, but the ranking is currently approximately:

* Symbian (60%)
* Windows (15%)
* RIM (10%)
* iPhone (7%)"

also see: Nokia and Symbian to become one; royalty-free, open source roadmap
"This disruption is now creating three centres of gravity around mobile software: LiMo, Android and the Symbian Foundation. Watch this space, as we analyse the aftershocks of the announcement to the industry."

also see: Check Mate for Google’s Android?
"Hard on the heels of yesterday’s announcement from Google that the launch of Android would be delayed from the second quarter to the fourth, is a potentially huge one from Symbian that could make Android completely irrelevant when devices eventually do start to ship."