Boy Genius Report is carrying some interesting information from AdMob today. Here's a bit of it:
The group analyzed data from over 16.8 million unique iPhones and iPod touch units browsing over 7,000 mobile sites and using over 2,500 different ad-toting apps over the course of June. Here are some highlights from AdMob’s findings:
54 percent of iPhone and iPod touch users are in the United States.
Following the U.S., France, Germany and the UK each had more than five percent of all iPhone and iPod touch devices.
iPod touch users represent 38 percent of total iPhone OS devices in North America.
Of the 45 million iPhone OS devices Apple has sold, approximately 13 million iPhones and 12 million iPod touch units have been sold in the US. That leaves roughly 20 million devices spread across the rest of the world.