As smartphones increasingly appear alike, with high-end models mostly taking their cues from Apple Inc's iPhone, more and more it's the software they run that makes a difference.
A growing number of operating systems are jostling for the attention of phone buyers and manufacturers. The winners will determine what our phones can do, which websites we're steered to, and which manufacturers will survive the next few years.
The battle will be on display as wireless carriers and phone makers gather next week in Barcelona, Spain, for the industry's largest trade show, Mobile World Congress. The chief executive officer of Google Inc, suddenly a strong contender in phone software, will address the show. Also hoping to make a splash is Microsoft Corp, which is struggling to revitalise its software.
One in six United States (US) adults had a smartphone last year, according to Forrester Research. That share is expected to grow rapidly in the next few years, as consumers warm to mobile devices that can run a wide range of applications and surf the Web nearly as well as computers.
Analysts don't expect smartphones to settle on one kind of operating software, like the PC industry largely has with Microsoft's Windows. But analysts do expect the smartphone field to be winnowed down to two to four winners over the next few years.
These are the contenders, starting with the largest worldwide market share:
"I think Nokia suffered somewhat in 2009," says Forrester research analyst Charles Golvin. "They're clearly struggling to regain their mojo on the high end of the spectrum."
To power more-capable high-end phones, Nokia is now trying a version of the Linux operating system called Maemo.
Symbian used to be developed by a company of the same name. It charged manufacturers that used the software. In 2008, Nokia decided to upend that, buying the company and setting up a foundation to give the software away for free, mimicking Google's strategy with its Android software. Giving it away can boost adoption of the software and make it more attractive to application developers, whose programs can entice more phone buyers.

But while Apple is likely to be one of the winners in the smart phone fight of the coming years, its reach will be limited because Apple doesn't allow any other manufacturer to use the iPhone operating system. And Apple doesn't make a wide variety of phones to choose from - just two models, with some variations in colour and memory capacity. Apple's narrow focus gives it excellent profit margins but also leaves plenty of room for competitors. Apple won't be at the Barcelona show, because it prefers to put on its own events.
RIM has a nearly impenetrable hold on the market for corporate email phones in North America, so analysts expect it to stay around. However, it has stumbled in trying to expand to the consumer market and in introducing touch screens. "The BlackBerry platform looks old and tired. It needs a significant scrub and redo," ABI Research analyst Stuart Carlaw says. "I don't think we'll see that in the first half of this year, but it's something that should be in the cards for them later in the year. If it isn't, it needs to be." Microsoft is expected to show off a new version of its mobile software Monday in Barcelona. Analysts see that as a do-or-die attempt to stay relevant in the business.
"I think 2010 is a year when Android share will really expand," Golvin says. Android is free for manufacturers as part of Google's effort to stimulate use of its web services on cellphones. It's attracting a lot of attention from application developers, but the offerings still don't match those on the iPhone, either in quantity or quality. Carlaw believes Android will, much like Symbian, mainly be used in mid-to-low tier smartphones, leaving the high end of the market to the iPhone, and perhaps Nokia's Maemo.
"The easiest one to write off is Palm. They're just so small in terms of overall market share," says In-Stat analyst Allen Nogee. "Unless they really see phenomenal growth coming out of Europe, and their expansion with Verizon and AT&T, it's going to be very challenging for them in the long run."

