In their new report, Nielsen has surveyed 4,200 people in the US who have downloaded an app on their smartphone in the last 30 days. Games were the most popular category with social networking, news, weather, and navigation trailing not far behind.

21% of American wireless subscribers have a smartphone at Q4 2009, up from 19% in the previous quarter and significantly higher than the 14% at the end of 2008

With smartphone use on the rise, we expect mobile browsing traffic numbers to grow as well. While native applications are experiencing high download rates, mobile web is picking up steam across many fronts, notably m-commerce.

Past 30 Day App Downloaders

Past 30 Day App Downloaders

Facebook App leads the popularity charts across all platforms except Android where it got overtaken by Google Maps.

Past 30 Day App Downloaders

Past 30 Day App Downloaders