AdMob has released its November Mobile Metrics Report (PDF Link), showing strong international growth for the iPhone and iPod touch in 2009. 50 percent of the mobile advertising firm’s November requests came from iPhone and iPod touch users, compared to 39 percent in January. Among Apple’s top 10 markets, Japan saw the biggest increase, with user growth topping 300 percent from January to November, followed by France, Australia, China, Germany, and Italy. Overall, the iPhone accounted for 71% of all unique Apple users. Interestingly, 36 percent of iPhone traffic in the U.S. was over Wi-Fi, considerably higher than other Wi-Fi capable devices; by comparison, less than 10 percent of traffic from major Android devices came over Wi-Fi. AdMob’s percentages are based on ad requests, impressions, and clicks, tracked over the more than 15,000 mobile web sites and applications to which the company serves ads.