Mobile ad network Admob has taken a close look at the geographic distribution of iPhone OS users in its June 2009 Mobile Metrics Report. AdMobs latest report also uses this network data in combination with figures from Apple to estimate the number of iPhone and iPod touch devices in various countries.
The report finds that worldwide adoption of Apple devices continues to grow. While North America leads, with 58% of iPhone and iPod touch users, Western Europe and Asia are on the up, representing 26% and 7% Apple device users, respectively. The worldwide ratio of iPhone to iPod touch users in the AdMob network was roughly two to one in June, although this varied from region to region. This ratio has remained relatively constant over the last several months, implying a similar growth rate for both devices worldwide.
Highlights from the June 2009 AdMob Mobile Metrics Report include:
- 54% of iPhone and iPod touch users are in the US
- Following the US, France, Germany and the UK each had more than 5% of all iPhone and iPod touch devices
- iPod touch users represent 38% of total iPhone OS devices in North America
- Requests from the Android OS increased 25% month over month. Android has 5% wldwide OS share and is slightly ahead of Windows Mobile for the first time
For the first time, AdMobs June 2009 Mobile Metrics Report lso features an estimated breakdown of the number of iPhone and iPod touch devices sold in various countries. Given Apples recent announcement that 45 million iPhone OS devices have been sold worldwide, Mob estimates that there have been 13 million iPhone and 12 million iPod touch units sold to date in the US, based on user data in AdMobs network. Additional details and worldwide country estimates are listed in the report.
This analysis is based on the 16.8 million unique users on iPhone and iPod touch devices on the more than 7,000 mobile sites and 2,500 applications in AdMobs network in June 2009, the vast majority of which were free to download. The report contains more details about methodology.
You can access the full report here. 
