Hello,
I'm trying to play with "Chapter 8 Where Am I 5".
First, please note the application does not handle common cases of failure.
You should make sure Internet link is fine and GPS already acquired location. app will crash in any other case.

the more important bug in this application is this - when pinching the map to zoom, the system will get into some sort of an infinite loop starting a thread and killing it. this will continue as long as you don't press the "back" button.
intrestingly - this won't happen if sliding the map, or simply not touching it.
this looks really bad and would probably KILL your battery power after a short while. i have not figured out a way to work around this.

(to see the bug, set an Eclipse debugger for your phone (in my case, nexusone))