The International Data Corporation released its Worldwide Quarterly Mobile Phone Tracker report yesterday, revealing that Samsung and Apple have more than doubled their collective market share in the smartphone sector and now account for nearly half of worldwide smartphone sales. The figures demonstrate the efficacy of the two companies' divergent approaches to the smartphone sector. The report showed that other manufacturers have a long way to catch the two leaders in the sector, but some relative newcomers appear to be making headway in the low-end market.