[1] A Media Circus provides an overview of the highlight statistics from Ad Mob. US, North America unsurprisingly leading the way in impressions.
Other highlights show that 74% phones support polyphonic ringtones, 35.6% support streaming video, 59.2% able to download video clips and 81% support WAP push messages, which are all interesting for mobile learning design considerations too, although AdMob do not claim that their statistics are fully representative of mobile internet as a whole. What is also interesting is that they are seeing ad requests from over 160 countries, this seems to contradict some of the current opinion that people don’t want to see ads on their phones. They don’t have to be revenue generating - what about new course or elearning material announcements, would it be useful or annoying to have a text or multimedia message showing a preview of what is coming out that month ?