problem with geometry_msgs.Twist on Android
After looking at the VirtualJoystickView.java in the Honeycomb example I tried to do similar thing on Gingerbread, however I was getting NullPointerException when trying to access currentVelocityCommand variable which is of type geometry_msgs.Twist.
Looking at the code of Twist.java it turns it's an interface. To implement Twist I also need to implement Vector3, and I'm now stuck with toRawMessage() method.
This is probably the wrong path and surely I'm missing something obvious.