It seems that Apple’s iOS and Android are growing on the cost of RIM  and Symbian in the U.S.. One side, where the market shares of iOS and Android are continuously increasing, while other side, the hold of BlackBerry and Symbian are weakening month-over-month. A report conducted by ComScore (over 30,000 U.S. respondents) reveals that number of Smartphone owners increased by 5% at the end of May 2012 compare to February of this year. As usual, Samsung and Google’s Android OS were at the top in OEM and mobile OS segments respectively at the end of May 2012.

Till the end of May 2012, there were 110 million Smartphone users in the U.S. Google’s Android dominated mobile OS segment with 50.9% market share at the end of May, up from 50.1% in February of this year, followed by Apple’s iOS, RIM and Microsoft with 31.9%, 11.4% and 3.9% respectively. Market share of RIM and Symbian OSs are uniformly declining month-over-month, dropped 2.0% and 0.4% respectively in May 2012 compare to February of this year.

In terms of OEM, Samsung was leading with 25.7% market share at the end of May 2012, up 0.1% compare to February of this year, followed by LG, Apple and  Motorola with 19.1%, 15.0% and 12.0% market share respectively. During the survey period ending March of this year, 234 million Americans (ages 13+ ) had mobile device. It’s pretty clear form the above table, market share of Motorola  and HTC plummeted by 0.8% and 0.2% at the end of May 2012 than February of this year.

I have always been describing about the mobile content usage and behavior of Smartphone users. In the U.S., users used their mobile device for sending text message (74.8%), downloading apps (51.1%), browsing (49.8%) and accessing of social networking site (36.7%) at the end of May this year.  Playing game and listening music on mobile device had incredibly increased till the end of May compare to February 2012.

Source: ComScore