Google and Apple are pulling even further ahead of Microsoft and RIM in the smartphone wars. According to the latest report from comScore, Google now controls 46.9 percent of the smartphone subscriber market in the U.S., up 3.1 percent from 43.8 percent for the three-month period ended in August.

Apple’s share, meanwhile, increased 1.4 percent to 28.7 percent.

The gains continue to come at the expense of BlackBerry maker RIM and Microsoft, whose mobile operating system now accounts for 5.2 percent of the market. That’s down 0.5 percent.

Can Microsoft regroup? A recent mobile roadmap laid out the company’s plan to boost its market share next year, in part through the release of new “superphones” in the fourth quarter of 2012.

ComScore’s study surveyed more than 30,000 U.S. mobile subscribers. In addition to the market share results for mobile platforms, the study also found Samsung to be the top handset manufacturer overall with 25.6 percent market share.

Samsung was followed by LG with 20.5 percent share; Motorola with 13.7 percent share; and Apple with 11.2 percent share.

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