EE Times writes:
"The Apple iPhone had a big impact on the smartphone market last year, prompting rivals to try to come up with equally innovative designs. But Apple's challenge this year will be in proving that it can sustain growth against fierce competitors, a market research firm said Tuesday.
Apple, which launched the iPhone in late June, took 28% of the U.S. smartphone market in the fourth quarter of last year, behind BlackBerry maker Research In Motion's 41%, Canalys said. Palm was a distant third place with 9% of the market."