AdMob Sees “Explosive” iPod Touch Growth

Mobile ad network AdMob has highlighted explosive iPod Touch growth and rapid growth in Smartphone Operating System (OS) market share in its December 2008 Mobile Metrics Report.
iPod Touch requests more than tripled worldwide from November to December, with a particularly large spike in requests the week after Christmas. The iPod Touch is now the No.2 device in the AdMob Network with a 4.7% share. While 70% of iPod Touch requests in December came from the US, it also experienced strong growth across major markets, including the UK, Canada, Mexico, Germany, and France. Combined, the iPhone and iPod Touch represent 15.5% of all worldwide requests.     
Smartphones increased from 22% of total requests worldwide in May to 33% in December. Symbian is the No.1 Smartphone OS worldwide, with a 41% share. In Asia and Africa it has more than 90% share, though the iPhone is challenging its dominance in Latin America and Europe. The iPhone OS had 32% worldwide share in December, up from 6 percent in May.   
Worldwide,RIM has 10% and Windows Mobile 9% OS share. Both are strongest in North America and Latin America. Palm has 4% of Smartphone OS share worldwide, with more than 95% of its requests generated in North America. In the US, Palm had a 9% share in December, declining from 20% in July. Android already leads Symbian in North America, with 2% of OS share.
You can see the full report here.