Through the hooks applied to some functions of Android API, we can better understand what an Android application is doing at runtime. Inspeckage will let you interact with some elements of the app, such as activities and providers (even unexported ones),
Google Play Downloader via Command line
Introducing screengrab: automating screenshots on Android
Bitmask is an open source application to provide easy and secure encrypted communication. You can choose among several different service providers or start your own. Currently, Bitmask supports encrypted internet (VPN) with encrypted email coming soon
Open Source security for mobile devices.