When we talk about top smart-phone operating systems in US market, we think of RIM, iPhone, Android, Windows Mobile (Windows Phone 7) and Palm. We all know, how Apple’s iPhone OS and Google’s Android OS are growing.

Looking at the report provided by ComScore, RIM is still holding the top spot followed by, Apple, Microsoft, Google and Palm. But, when we look the growth from the last three month starting from November 2009, Google had a tremendous growth compare to the other smart-phone operating systems. Google captured 7.1% of US smart-phone market share with a increase of 4.3 points, which is 154% increase. RIM is having the largest piece of US smart-phone market share, holding 43.0% with a increase of 1.7 points, which is only 4.11% increase.

Thought Apple is holding the 2nd biggest piece of US smart-phone market share, the growth percent is very disappointing. Unfortunately, Apple could only gain 0.3 points, which is only 1.2% increase, in the last three months starting from November, 2009.

Nothing has changed with Microsoft and Palm, as they again lost 4.0 and 2.1 points respectively. We are positive that, number will definitely go up for Microsoft when Windows Phone 7 Series will be available (that wouldn’t be till the end of this year.)

With that said, Should Steve Job’s be worried about this? – Well, I guess, down the road, when 4th Gen iPhone releases we can see the number go high. But, will Google give any room to beat Android’s growth or to overtake Android’s growth percent? Remember, Google CEO Eric Schmidt said Android OS growth is accelerating – 60,000 Android Powered devices a day.

If you are interested, you can also look at the following (OEM Market Share & Mobile Content Usage)

Looks like Samsung will soon lead this group.

We all know social networking is a SUPER BIG thing now-a-days.

If you are interested in looking at the past ComScore report here they are..

iPhone and Google gains where as RIM, Microsoft and Plam loses

iPhone beats Windows Mobile in US – ComScore Survey

Here are few other report from Gartner, Forbes & Canalys.

By next year, Apple’s iPhone will overtake RIM’s BlackBerry

Touchscreen Mobile Device Sales Will Grow 97 Percent – Says Gartner

Gartner’s worldwide smartphone numbers (iPhone, Android & RIM gained) – 2009

On a worldwide level Apple’s iPhone OS beats Microsoft’s Windows Mobile OS- 2009

iPhone and Google gains where as RIM, Microsoft and Plam loses

Source[via ComScore]

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