iOS has returned to control of the US smartphone market in terms of device sales, according to new data from Kantar Worldpanel Comtech. In a 12-week period ending October 28th, iPhone sales accounted for 48.1 percent of the market; that put iOS up 25 percent year-over-year. Android, by contrast, slipped from 63.3 percent a year ago to just 46.7 percent.