Not in at the moment <a href="http://bellegreyedesigns.com/medco-online-pharmacy-phone-number-f15e.pdf">cost of prescription drugs with medicare</a>  StatCounter said 83.9 percent of usage is currently from non-mobile devices. On those machines, Windows 7 is the top operating system at 52.6 percent. Windows XP is declining but stayed in second place at 21.1 percent. Windows 8 rose to 5.9 percent to pass Windows Vista at 5.4 percent. Apple's OS X was at 7.4 percent, while iOS running on iPads was at 4.2 percent.