Ahead of Microsoft’s Surface event on Tuesday, Chitika took a look at some usage statistics in the non-iPad tablet market, and the results for Microsoft’s devices were a tad bit worrying. Based on tens of millions of U.S. and Canadian online ad impressions, Chitika found that the Surface and Surface 2 usage share in the tablet market had fallen from 7.5% to 6.7% since February 1st, even excluding iPad usage.
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