Global research and analyst firm Gartners is predicting that worldwide smartphone sales will reach 468 million units in 2011, a 57.7% increase from 2010. According to Gartner, by the end of 2011, Android will move to become the most popular operating system (OS) globally and will build on its strength to account for 49% of the smartphone market by 2012. Sales of open OS devices will account for 26% of all mobile handset device sales in 2011, and are expected to surpass the 1 billion mark by 2015, when they will account for 47 percent of the total mobile device market. Read More…