But the point is that AdMob is quite dubious as a measure of how many people are going online. Their ads are served through various mobile websites and iPhone / Android applications (and I assume Java apps, altough I am not sure), which may not be a representative sample of what people actually browse worldwide from their mobile phones. <BR><BR>Not that NetApplications is necessarily much better, but their OS "market"-share lists Windows Mobile at 0,04%, while Android and Blackberry are behind at 0,02% (altough some of their hits are certainly counted through Java ME, I suppose mostly for RIM?). Whereas the AdMob numbers place both Android and Blackberry OS far, far ahead of Microsoft. <BR><BR>Also, the AdMob numbers of course favour devices with heavy Internet traffic because they report requests and percentage of requests, not unique hits. It is certainly not a given that buying apps is directly proportional with how often a user goes online. Theoretically, in order to buy those apps, it would suffice that the user goes online at all, even once, which is what NetApplications measures, but AdMob doesn't (or at least doesn't report).