市场咨询机构nielsen尼尔森针对过去一个月手机（含功能型手机和智能手机）对各项应用的下载情况对4200位用户进行了抽样调查，得出了一些结论。

2009年第四季度21%的美国用户拥有智能手机，相比前一季度递增19%。14%的手机用户过去30天内下载过应用程序。在手机应用程序拥有数方面，智能手机为22个，而一般手机为10个。

尼尔森

在智能手机方面，下载应用程序的排序是iphone手机37个，android手机22个，palm手机14个，微软手机为13个，而黑莓blackberry手机仅为10个。

在应用程序下载种类比较方面，游戏应用依然独占鳌头，智能手机下载达到65%，一般手机也不赖为59%。音乐方面，智能手机为46%，一般手机为45%；新闻/天气类，智能手机为56%，而一般手机仅为32%。

Nielsen, the ratings and measurement company, has just announced the sale of something it is calling its App Playbook, built after surveying over 4,200 people who had downloaded a mobile application in the preceding 30 days. Perhaps surprising isn’t the word for the conclusions they’ve published, since there is not a lot of data preceding it. But interesting it definitely is.

* 21% of American wireless subscribers have a smart phone at Q4 2009, up from 19% in the previous quarter and significantly higher than the 14% at the end of 2008
* 14% of mobile subscribers have downloaded an app in the last 30 days
* Average number of apps: Smart phone: 22, Feature phone: 10

The phones that users have downloaded the most apps to were, in order, iPhone, with 37; Android, 22; Palm, 14; Windows Mobile, 13 and BlackBerry, 10.

Among other conclusions of the survey is that games, both free and paid, are the most downloaded of apps. No surprise there. On smart phones, vs. feature phones, the most popular are Facebook, Google Maps and Weather Channel.

Facebook is also the most popular in the social app category, but LinkedIn is popular with adults 25-44 and MySpace is more popular with teens than one might expect, given its leveling off.

The greatest surprise is that news barely makes a ding in the apps market, at least according to this study. Getting news tailored to your needs is one of the most gratifying elements of the new world of information. But maybe we’re somewhat prejudiced.