The iPhone remains the most targeted mobile platform when it comes to advertising, quarterly data from Millennial Media shows. Apple has held the position since 2009, when most high-ranking devices on the list were basic feature phones. All devices in the top 20 are now smartphones, and dominated by Google's Android platform, which represents more than two-thirds of the top hardware. Ranking second in terms of ad impressions however is RIM's BlackBerry Curve, in spite of RIM's general decline in the smartphone world.