Short brake later, we're back.
With some time to think it was decided that it might be a good idea to brush up on the basics first.
So, this is going to be done next: a GPS receiver for FlightGear.
Point of this "exercise" will be to gain some experience in Android, specially with background services.
I mean, it would be kind of bad if an incoming call would make the plane crash. Definitely not a condition to make this project successful!