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According to a new report from analytics firm Distimo, the average selling price for iPhone games has declined by 28% over the last year. However, the revenue generated by the most successful freemium games has increased by a factor of 10. The increase is due to the popularity of in-app purchases, which are now used in 35% of the 300 most popular games in the iPhone App Store.

Analtyics firm Zokem recently released data related to smartphone usage trends, based on its panel of global studies involving consumer behavior. The goal was to identify mobile consumer trends as related to smartphone enagement.

The company found that there is a slight peak in the afternoon on work days, related to an increase in voice calls. But for the rest of the day, engagement with different smartphone features is fairly even, including both app and Internet usage.

Adobe is shutting down two of its app stores dedicated to mobile and desktop application distribution, Adobe InMarket and the Adobe AIR Marketplace. The decision, the company says, was based on developer feedback. Adobe says it will now focus its efforts on helping developers publish their apps on multiple platforms, including official app stores like Apple's iTunes, Google's Android Market, BlackBerry App World, Intel's AppUp, Samsung Apps and Toshiba App Place.

Mobile developers can now add in-app social networking features to their mobile applications using a new software development kit (SDK) from Socialize, Inc. Once intergrated, the app's users can find and connect with each other based on similar interests and can also push some of the app's content to social networking sites like Facebook and Twitter, or, for those who like it old-school, email.

Document hosting and sharing site Scribd is venturing into the mobile space in order to give its publishers an opportunity to attract more readers. With a new mobile reader application called Float, Scribd aggregates content from news sites, magazines, blogs, and Scribd.com as well as from your social networks like Facebook and Twitter. You can also save items you find online to read later in Float, with the use of a specialized browser bookmarklet.

But what's most unique about this app is the way it reformats the text for the small screen. The "floating text" reading experience, which gives the app its name, reflows text originally formatted for the Web for better reading on mobile devices.

On Friday, Google officially announced the Android 3.2 platform, which offers a handful of enhancements, including one that will let you run smartphone apps on larger devices. A new compatibility display mode will provide an alternative to the UI stretching available today, and instead lets you "zoom" in on an app on a simulated low-res screen.

Essentially, it's like the iPad's 2x mode, but for Android.

Horace Dediu of asymco posted this chart (below) to his Apple trend-tracking blog this week, showing that, finally, app downloads have overtaken downloads of songs on iTunes.

Mobile ad network Millennial Media is out with its report for June and the numbers look good for Android. 16 of the top 20 devices on the network run Google's mobile OS, keeping Android as the leading OS on the network for the 7th consecutive month. Android also accounts for a 54% impression share, says Millennial.

Other major findings this month include a growth in iOS impressions and connected devices (e.g. iPad, iPod Touch, Samsung Galaxy Tab, etc.).

Are you getting "unfriended" on Google Plus? A new application called GoogleMINUS will tell you. Although Google Plus itself tells you when you're being added to Circles, it doesn't inform you when you're being removed from them. Was that one kitten post too many? Are you over-sharing? Maybe you're just doing this whole Circles thing wrong! Well, now you'll know.

Multiple outlets are reporting shifts in pricing in Apple's International App Stores, in order to adjust prices to reflect changes in the U.S. dollar. In some markets, prices went up, while in others, prices went down. For example, a $0.99 application in the U.S. is now £0.69, when previously, it was £0.59. Meanwhile, a Japanese app that was 115 Yen is now 85 Yen.