My first Android App --- Guessing Number

Wed Mar 30 01:35:50 CDT 2011
This is the exactly time I published my first Android App. This application took me like 10 hours work from the start.
Here is the link to download my application:
https://market.android.com/details?id=com.antonio081014.world&feature=search_result


The game is pretty easy to start.

You need to guess four distinct number ranged from 1 to 9. The system will respond a message, which formatted as: a2b1. This means you have 2 right numbers in the right positions, and also 1 right number in the wrong position.

You could not win the game unless you have all those four numbers right and also located in the right position.

Required:
Android OS: 2.3.