Samsung is the world's largest smartphone manufacturer

"Samsung has overtaken Apple in worldwide smartphone shipments after Apple suffered its lowest levels of shipments in two years, according to research firm Strategy Analytics.
Global smartphone shipments grew 44% year-on-year to reach a record 117 million units in the third quarter of 2011, said the survey. Samsung shipped 28 million smartphones, grabbing 24% market share and overtaking Apple.
[...]
Apple's share of the tablet market has also shrunk by 29% to 67%, as Google's mobile operating system (OS) Android took a chunk out of the company's global sales during the last quarter this year.
Nokia's market share fell from 33% in the same period in 2010 to 14% in 2011. Strategy Analytics believes Nokia's new Lumia smartphone range, running Microsoft's Windows Phone 7.5 OS, could drive recovery for Nokia's marketshare.
Global handset shipments grew 14% in the third quarter of 2011 to reach 390 million units."
Source:  Computer Weekly, 31st October 2011