That's the story being reported by ComScore and repeated in countless headlines around the blogosphere this afternoon. Before you jump to any conclusions, though, hang on: The story isn't quite what it seems.

ComScore's data, to use a painfully cute cliche, is looking at apples and oranges. The analysis compares all iOS devices -- iPhones, iPods, and iPads -- with Android phones and a couple of early non-Honeycomb tablets. (The data goes only through February of 2011; the launched at the end of that month.) Not surprisingly, it finds that the total number of iOS devices exceeds the number of Android devices within the U.S.; in this scenario, Apple's share of American mobile users is 37.9 million, or 16.2 percent, while Android's is 23.8 million, or 10.2 percent.

Here's the problem: Typically, when we look at mobile market share, we look at a parallel comparison: one smartphone platform vs. another smartphone platform. A tablet OS against another tablet OS. Of course Android is going to look small in the scenario ComScore has created. Heck, forget the iPad: The inclusion of the iPod alone is what's skewing the results.

Don't believe me? Let's do some math. ComScore doesn't provide the exact breakdown of iOS users by device, but it does say this: