Finally I have checked in the andorid app and arduino code into github and shared. Sorry about the delay... here is the sad sad story...

Two weeks ago, I converted my code over to use JSON, and wrote an android app to send the JSON messages over MQTT. I got it working, I was very happy and thought, I will clean up the code the create a github repo and share. This is a good idea, however in the wrong order... always check into source control before you clean up the code. I made a mistake, broke my code and spend many hours last weekend trying to fix it. I hope you can learn from my mistake.

Now, I'm off to clean up the code.