Egham, UK, May 16, 2012 View All Press Releases Gartner Says Worldwide Sales of Mobile Phones Declined 2 Percent in First Quarter of 2012; Previous Year-over-Year Decline Occurred in Second Quarter of 2009 Samsung's Android-Based Smartphone Sales in First Quarter of 2012 Represented More Than 40 Percent of Android-Based Smartphone Sales Globally; No Other Vendors Achieved More Than a 10 Percent Ma