Don Kellogg, Director of Telecom Research & Insights

According to an August survey, 43 percent of all smartphone owners have an Android device. But if you ask only those who got a new smartphone in the past three months what kind of phone they chose, more than half (56%) will tell you they picked an Android device. The preferences of these so-called “recent acquirers” are important as they are often a leading indicator of where the market is going.

Apple iOS remains popular in second place with 28 percent of all smartphone users, and the same percentage among those who recently got a new device. But those figures could change quickly in the months to come. Every time Apple launches a new iPhone or makes it available on a new wireless carrier, there is an increase in their sales.

Changes in share aside, the smartphone pie is getting bigger. While 43 percent of all mobile subscribers in the US had a smartphone as of August, 56 percent of those who got a new device in the last 3 months chose a smartphone over a feature phone. The holiday season and the launch of new devices like the next iPhone could further accelerate smartphone adoption, though this is always tempered by the fact that many consumers are unwilling or unable to break their service contracts before they expire. In any event, the growing popularity of app-and-media friendly smartphones spells tremendous opportunity for those advertisers, publishers and developers eager to leverage mobile media.