Desktop/Android/HTML5/iOS Java game development framework

Haven is for people who need a way to protect their personal spaces and possessions without compromising their own privacy, through an Android app and on-device sensors

Angry IP Scanner - fast and friendly network scanner

Google Reader inspired self-hosted personal RSS reader.

MARY TTS -- an open-source, multilingual text-to-speech synthesis system written in pure java

Simple and powerful File Editor for Android. All is licensed under the GPLv3 license.