However, Millennial Media also reported that the iPhone remained on top as far as generating the most revenue from mobile applications, as 50 percent of mobile app revenue last month came from iPhones while 39 percent of all mobile app revenue in April came from Android-based devices. And while Android may be the top overall operating system on the market right now, the iPhone remains far and away the most popular individual device, accounting for 20 percent of all advertising impressions on the network. Rounding out the top five overall devices are the BlackBerry Curve (5.3 percent of all impressions), the HTC Evo 4G (3.1 percent), the Samsung Nexus S (2.6 percent) and the Motorola Droid X (2.3 percent).
Android's rapid rise as a popular operating system has been one of the biggest stories of the mobile world in the last year. Since its debut in the fall of 2007, Android has appeared on numerous popular smartphones for several carriers including Verizon's Motorola Droid and Sprint's HTC Evo 4G. Google has also adapted its operating system to run on the tablet form factor and the company projects that it will unify the platform to work equally well on both tablets and smartphones by the end of the year.
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