Symbian

Nokia is the global cell-phone leader, with sales of 329 million units in 2009. Yet when it comes to feature-packed smartphones in some markets, including the U.S., analysts say Nokia is under threat from rivals Apple, Research In Motion, and Google.

Nokia is making Skype available for the Symbian platform. A joint announcement Wednesday by the world's largest handset maker and the maker of the most popular VoIP calling software means that owners of select Nokia devices will be able to make phone calls over Wi-Fi or a mobile data connection at a fraction of the cost for normal calls.

Mobile-phone sales worldwide headed up at the end of last year, according to a new report from industry research firm Gartner. Sales in the fourth quarter posted a 8.3 percent increase compared to a year ago, although overall 2009 sales dropped 0.9 percent.

Gartner said the drivers pushing up sales are smartphones and low-end devices. Smartphone sales, said Gartner Research Director Carolina Milanesi, "continued their strong growth in the fourth quarter of 2009," up 41.1 percent over 2008 to 53.8 million units. For all of 2009, smartphone sales were up 23.8 percent.

Samsung Electronics Co., the largest maker of cell phones for the U.S. market, on Sunday revealed the first phone running Samsung's own "smart" software system, bada.

With bada, Korea-based Samsung is taking the TouchWiz system used on its touch-screen non-smart phones and making it the basis of a smart phone platform to take on Apple Inc.'s iPhone and Research In Motion Ltd.'s BlackBerry. Samsung also makes phones based on other competing smart phone systems: Android, created by Google Inc., and Symbian, of which Nokia Corp. is a major backer.

Adobe Systems will make its AIR platform and new Flash player available to mobile devices. The company previewed the new AIR version at the Mobile World Congress in Barcelona, Spain.

Intel and Nokia are combining their Moblin and Maemo operating systems to create a unified Linux-based platform that will run on a wide range of mobile computing devices, including advanced cellular handsets, netbooks, tablet computers, TV sets, and in-vehicle infotainment systems. Called MeeGo, the new open-source platform is expected to launch on next-generation devices from Nokia and perhaps other vendors in the second half of this year.

It's official -- and ahead of schedule. The Symbian mobile operating system is now completely open source. The Symbian Foundation on Thursday released Symbian 3, the latest version of the platform.

With the open-sourcing of Symbian, along with Google's Android operating system, the mobile world continues forging an open strategy that invites handset makers to further customize and differentiate their products.

Nokia Corp. said Wednesday it expects the global mobile phone market to grow by 10 percent in 2010, suggesting the industry is recovering from a global recession that has also hit handset sales.

However, the world's largest cell phone maker cautioned that its own market share volume, currently at some 38 percent, would be "flat" next year, but added that it expects the value of its market share to be up "slightly."

Nokia said it is targeting revenue of euro2 billion ($3 billion) in 2010, with operating margins of 12-14 percent.

Nokia CEO Olli-Pekka Kallasvuo told investors Tuesday that the world's number-one handset maker remains committed to the open-source Symbian and Maemo operating systems as the main platforms for smartphones, advanced handsets, and web tablets. Among other things, Kallasvuo said Nokia intends to drive user-experience improvements in 2010 by taking the Symbian user interface to a new level.

Nokia announced two new slider 3G phones Tuesday -- the 6700 Slide and the 7230. The Finland-based company described the new models as "made for the design-conscious consumer and optimized for socializing and sharing." The devices are among a series of steps Nokia is taking to recover from a downturn.