Just heard that Google has started to manually review apps before making them publicly available on its Google Play store. The company has been using the process quietly for the past several months but nobody noticed it until 17th of March when it was disclosed in some techno blogs.
The new process involves a team of experts from Google reviewing applications for compliance with their laundry list of policies pertaining to content, network usage, application promotion and other items. In addition Google has also added a new application content age-based rating system for apps and games.
[Image Credit: Android Developers Blog]