GAST is a toolkit for using Android's Sensing capabilities. It contains the examples, boiler plate code, and algorithms you need to properly use Android sensors.
Compiles UMLet Class Diagram files into skeletal source code.
Allows you to connect your applications with SaaS providers such as Facebook and Twitter.
A Kata exercise. This one involves writing code to reserve seats on a train.
Automatic code generator from UML using a sintaxis based on the yUML.me web applicaiton