Comscore: Windows Phone adds 75,000 US users in September, loses 0.1% market share

MicrosoftNov-8Dec-10Jan-11Feb-11Mar-11Apr-11May-11June-11July-11Aug-11Sept-11
US installed base98.487.77.56.75.85.85.75.75.6
Percent loss0.70.60.40.30.20.80.900.100.1

comscoreseptember

Comscore have released their monthly US cellphone subscriber market share numbers, and once again Windows Phone is in a holding pattern.

The platform added another 75,000 users, for a total of 4.89 million Windows Phone (Windows Mobile + Windows Phone 7) users in USA.

On the other hand, instead of the upturn in market share we were hoping far last month, there was once again a small drop in market share, with Windows Phone now having 5.6% of the installed base.

As usual, at least we are not RIM, which lost 0.8% market share and 136,000 users. We will look forward to November’s numbers, due in December, to see if there is a bounce in market share due to the introduction of new handsets and new marketing efforts by Microsoft.

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