Tight margins and stiff existing competition forces them out.

Android the single largest OS and snatching shares from Symbian.

Lack of Android marketplace in China will allow PapayaMobile to tap into its massive market.

Trial version of new app is giving options to users to block unwanted in-app ads.

Five steps introduced on Android to help users find apps and drive developer revenue.

AT&T follows T-Mobile USA to give better customer experience.