The following lists the top smartphone operating systems by market share in the United States in May, according to research firm comScore.
ComScore conducts monthly user surveys. The following list is derived from a May survey of 35,520 U.S. mobile subscribers over the age of 13. ComScore asked respondents what type of phone they own, and derived operating system information based on those responses.
According to comScore's numbers, almost 30 million Americans own a smartphone, while 204 million own a "non-smartphone."
These numbers represent current phone ownership at a specific point in time, rather than the total number of devices sold with a particular operating system.
These numbers are the most recent available from comScore, and represent the market situation before the introduction of the Palm Pre and the iPhone 3GS last month. But stay tuned: FierceWireless will publish those summer numbers when they become available.
Click here to get started.
For February numbers, click here.