• VentureBeat, Friday, June 18, 2010 12:17 PM

Apple, while still the leader in all mobile ad categories, was consistently the biggest loser in month-to-month ad impression decreases, according to May analysis from mobile advertising firm Millennial Media. By contrast, Google's Android operating system, along with some of its partners and devices, saw the biggest gains, notes VentureBeat. "Apple remained the top device manufacturer for Millennial in May with 25 percent of impressions -- but that was a 10 percent drop from its April share of 35 percent," VentureBeat notes.

Mobile device manufacturer HTC saw the biggest gain of 2.4% since April, which brought it to the number four spot with 8.4% of impressions. Since April, the iPhone dropped nearly 7%, while Google's Nexus One saw the biggest gain of 1 % -- bringing it to the number 3 position on Millennial's chart. Futhermore, Apple saw its worst losses in the U.S. smartphone OS comparison chart, dropped nearly 14% since April.

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