This was originally posted at ZDNet's Between the Lines.
However, Android has a much smaller base of devices and thus has more upside ahead.
AdMob, a company that tracks mobile Web and application usage, found that Android and iPhone users download nine to 10 apps a month and iPod Touch users download 18 a month. More than half of the Android and iPhone users spend more than 30 minutes a day using apps, according to the survey results released Thursday (PDF).
That's some serious engagement and a lot of runway for Android. Why? Android-powered devices--T-Mobile's MyTouch is the headliner--are hard to come by. However, that's changing as Motorola will be taking Android handsets to large carriers like Verizon Wireless in the fourth quarter.
Simply put, Android has a nice base of engaged users already. More distribution is likely to make it a more viable rival to the iPhone.