In 2010 Android phones sold more than iPhones, but only in early 2011 the advertising market does the same switch – as stated by Millennial Media.
According to Mashable:
Android ad requests grew 141% from Q3 to Q4 of 2010 while Apple requests grew 12% and RIM requests grew 60%.
The data refer to about 80% of US mobile market, but they show a trend quite known.
