This ChangeWave consumer survey doesn’t include market share numbers, but does convey just how fierce competition has become between the five leading mobile operating systems and among top device manufacturers. The best chart is this one, which shows just how rapidly Google’s android operating system is “disrupting” the market:

Here’s the chart Adam refers to below, which is primarily intended to show average prices for apps for various operating systems, but which also includes the total number of apps available for each operating system in parentheses underneath the bars.

Berin Szoka / Berin is the founder of TechFreedom. Previously, he was a Senior Fellow at The Progress & Freedom Foundation and Director of PFF's Center for Internet Freedom. He covers Internet and media policy issues including privacy, advertising, neutrality, cybersecurity, free speech, child safety, and various other efforts to regulate the Net.
Berin was elected in 2010 to the Steering Committee of the DC Bar Association's Computer & Telecommunications Law Section. Before joining PFF, he practiced communications, Internet and satellite law as an Associate in the Communications Practice Group at Latham & Watkins LLP. Previously, he practiced at Lawler Metzger, a boutique telecommunications law firm in Washington and clerked for the late Hon. H. Dale Cook, Senior U.S. District Judge for the Northern District of Oklahoma.
A recognized expert on the legal and regulatory issues associated with space commercialization, Berin is a member of the FAA's Commercial Space Transportation Advisory Committee (COMSTAC). He is a Director, and former Chairman, of the Space Frontier Foundation, a citizens' advocacy group founded in 1988 and dedicated to opening the space frontier by enabling "NewSpace."
He received his Bachelor's degree in economics from Duke University and his J.D. from the University of Virginia School of Law, where he served as Submissions Editor of the Virginia Journal of Law & Technology.