It's not hard to see that Americans love their mobile apps, and Nielsen can now tell us by how much. The average US smartphone owner circa mid-2012 now brandishes 41 apps, a pretty hefty 28 percent increase from a year earlier. They're preferring native apps to the web, as well: they're more likely to spend time with that direct port of Cut the Rope than the HTML5 version. Along with reminding us that smartphone owners are now in the majority in the country, Nielsen has added that there's a total of 84 million Android and iOS users in the US, or more than double what we saw just a year ago. We're a bit disappointed that the figures mostly exclude BlackBerry and Windows Phone owners, although they still paint a picture of a country that's entirely comfortable in its smartphone shoes.