My firsr Android App

As a android newbie I enjoy every little piece of code which can do something useful. After spending some time with several books and guides I became familiar with android's concept and framework. I was really surprised that after more than 10 years of software development, I would be happy with my initial attempts to develop "Hello world" like applications. This reminds me to my firsts attempts with programming: Quick Basic application for space flight simulation long time ago ...
Anyway, now I am proud with my first app, which can do something useful. It is called "SMSCarParking". Created in response to a request of one my colleagues, this utility is capable of sending predefined SMSes. The original idea is to simplify life with modern SMS Parking applications, which are quite common today.
The application is more like a toy, rather than real big application. But it can do the job! :) You can have a look at: http://code.google.com/p/smscarparking/. I am not ready to go to Google Play, but hopefully you will find it there any moment now.
The application is free, open source, no ads. Any comments, critics and ideas will be appreciated!