Today we released the October 2008 AdMob Mobile Metrics Report, our monthly view of the mobile traffic from our network of 6,000 publishers worldwide.  Worldwide requests increased 14 percent to 5.8 billion and we saw greater than 5 percent growth in all of our Top 10 markets.

The iPhone has finally taken over the top spot in our network, with a 4.1 percent share of worldwide requests.   In this month’s report, we highlight the wide distribution of iPhone traffic worldwide.  37 percent of traffic comes from outside of the US, with 19 countries sending more than 1 million requests in October.

We also announced that we saw more than 4.5 million unique iPhones in October (based on the serial number and other unique identifiers), this represents a reach of 1 in 3 iPhones in the world.   There were 236 million pageviews from iPhones in October – which means each iPhone in our network generated an average of 52 page views.

We have seen particularly explosive growth following the launch of our unique ad units for iPhone sites and applications in July 2008.  The engaging nature of the iPhone combined with these interactive ad units has gotten both brand and performance advertisers excited and they are running campaigns. In fact, in the last month alone 16 brand campaigns ran on our iPhone network.

Also included in the October Mobile Metrics report is a feature on Latin America and the Caribbean, a region that has doubled in size for us over the last year.  The feature breaks out the top handsets and manufactures for eight of AdMob’s top markets in the region including Puerto Rico, Mexico, Argentina, and Brazil.

Email us at metrics@admob.com if you have any comments on the report or would like to be placed on our email distribution list.

Jason Spero