Hey guys, I would like to ask someone here if he can write a tutorial about how services work, how to create them and run them, and how do they respond (talk) with my main Activity and just about what they can do.

thanks!

hey man!

I suggest you to take a look to Android API demos in the android developers website... I started by those examples to set up a service.

You can take a look to Music Droid tutorial at http://helloandroid.com/tutorials too