Microsoft and Nokia joined forces for a launch event in New York to announce several new features for Windows Phone 8 along with two all-new devices—the high-end Lumia 920 and a mid- to high-end Lumia 820.

Nokia said Thursday that it plans to cut up to 10,000 positions globally by the end of 2013, and is selling luxury phone maker Vertu in a bid to cut costs, even as it plans to boost investments in feature phones, and smartphones based on the Windows Phone operating system.

The company also announced changes in its senior management and plans to acquire imaging specialists as well as all technologies and intellectual property from Scalado in Lund, Sweden.

In the fourth quarter, the Finnish handset maker said it lost 1.07 billion euros, or $1.4 billion. During the same period a year ago, the company posted a 745 euro profit.

Nokia Asha 200, 300, 303

Nokia unveiled its first Windows Phone handsets, the Nokia Lumia 800 and Lumia 710.

Nokia announced three new smartphones, which will run Symbian Belle. 

Nokia unveiled Tuesday its new N9 smartphone that runs the MeeGo operating system, and is being marketed as a "pure touch screen" device without buttons.

The N9 will launch later this year, and the company will release later the device's pricing and availability in various markets, Nokia CEO Stephen Elop said at a company event in Singapore.

Nokia will adopt Microsoft's Windows Phone as its primary smartphone strategy.

Microsoft is already working with Nokia on the company's first Windows phone, and the companies are in discussion with chip manufacturers, the companies said.

The companies will also partner on mobile ads -- where Nokia will use Microsoft adCenter in mobile devices -- and on mapping, where Nokia Maps will become part of Microsoft's Bing search engine.

It's been less than a month since Microsoft and Nokia announced a strategic partnership to work together in a number of areas, though mainly on mobile phones. One detail that was not disclosed at the time was what kind of dollar investment Microsoft had promised Nokia for developing and marketing Nokia-made handsets that will ship with Microsoft's Windows Phone OS.

Nokia is making Qt its sole application development framework and is supporting HTML5--both of which the company says are designed to benefit mobile app developers and customers.

The mobile phone maker said today its Qt decision means that mobile apps will be compatible with future versions of Symbian and MeeGo. Previously, developers could write directly for Symbian or MeeGo, each with its own specific development tools and environment.