A report from iSuppli notes that while Windows Mobile is expected to fall to the No. 3 position among worldwide smartphone operating systems in 2009, appearing on 27.7 million smartphones, that number is expected to climb to 67.9 million smartphones by 2013, boosting Windows back into the No. 2 spot by 2012. This would allot it 15.3 percent of the global market share and put it behind long-time leader Symbian, which is expected to control 47.6 percent market share.