Droidulus - Reverse Calculator for Android Desire (very much beta)

I have over time slowly improved this reverse calculator for 2 reasons. 

1. My daughter likes to try my phone
2. As long as she find it fun I might as well try to get her used to the multiplication and math.

Here is a small video showing the application

For those interested you can find the app here Droidulus - Reverse Calculator.

There are many things that could be improved

• UI
• Saving and retrieving shared preferences
• Not hard coding strings in the code :) this should be language controlled
• Inversion of Control via Dependency Injection using Spring ME

I have posted the source code on Github more specifically located here kenneththorman's Droidulus at master - GitHub.