Apple

Worldwide tablet sales are expected to reach 118.9 million units this year, led by Apple's iOS, according to a Gartner report, which adds that this number is a 98 percent increase from 2011's sales of 60 million units.

Carolina Milanesi, research vice president at Gartner, noted in the report today that Apple continues to be the dominant media tablet operating system, and is expected to account for 61.4 percent of worldwide media tablet sales to end users in 2012. This will be down from 66.6 percent in 2011.

Despite the arrival of Windows-based devices to the market, and the rollout of Amazon's Kindle Fire, Apple will continue to be the market leader through the forecast period, she added.

Read more of "Tablet sales worldwide to almost double in 2012" at ZDNet Asia.