The Millennial Media monthly report on their 90 million plus advertising network shows that Android continues to lead the mobile smartphone industry as the top advertising platform. The report gives Android a 51 percent market share for the US. Trailing Android is the Apple iOS with a 27 percent market share and Blackberry with 14 percent. Apple's iOS is down 1% for the past month, whereas RIM is up by 3% for that same period. Within the tablet market, iOS is the clear victor with 80% of the tablet ad impressions. The tablet market is the fastest growth market--last month the growth was 56%.