Mobile ad network AdMob has released its August 2009 Mobile Metrics Report, which examines the market share of Smartphone devices per geographic region. With improved mobile browsing capabilities and engaging applications, AdMob notes that Smartphone penetration continues to climb worldwide.
This months Mobile Metrics Report lists the top 20 handsets and top 20 Smartphones in each geographic region. While Symbian devices such as the Nokia N70 and N95 continue to be popular, the report finds that the iPhone OS, Android and webOS have gained market share over competing platforms in the last six months. In particular, Android has shown strong momentum, with increasing usage of the HTC Dream (G1) and HTC Magic (myTouch) devices in the US and Europe.
Highlights from the August 2009 AdMob Mobile Metrics Report include:

• Worldwide iPhone OS marketshare has increased from 33% to 40% in the last six months, with substantial share in all regions except for Asia and Africa.
• Android growing rapidly in North America and Western Europe. The HTC Magic (my Touch) is a Top 10 Smartphone in both North America and Western Europe.
• Although its market share has been declining, Nokia continues to hold 12 of the top 20 Smartphones devices in AdMobs network.
• iPhone represented 50% of US Smartphone usage in AdMobs network in August 2009, followed by RIM and Android devices at 14% and 13% respectively.
• The Palm Pre also had a strong month, due to the addition of new publishers to the AdMob network, and captured 9% of US Smartphone usage.
• Nokias N97 and 5800 XpressMusic touchscreen devices were the fourth and fifth most popular Smartphones in Western Europe.

The data is based on usage of handsets and Smartphone devices during the month of August in AdMobs network of more than 9,000 mobile sites and 3,000 applications. AdMob market share is calculated by the percentage of requests received from a particular handset; it is a measure of relative mobile web and application usage and does not represent handset sales. Additional details and regional data are available in the full August 2009 report.
AdMob stores and analyzes handset and operator data from every ad request in its network to optimise ad serving. Each month, the AdMob Mobile Metrics Report aggregates this data to provide insights into major trends in the mobile ecosystem.
You can access the full August 2009 report, as well as archived reports from previous months, here.