OK guys, here's how this works for those of you who DON'T have Full GPS. The cell tower you're attached to is the blue dot indicated on the map. The circular area that you're located within is a correlated from your BB's radio strength. In other words, the loser you are to a radio the lower your radio db is because it doesn't need a lot of power to get a good signal. The further you are the higher the db is to get a good signal or a signal at all. Now, that db rating is used to judege the "xxxx meters" away number it shoots out at you. It's pretty cool of a programming setup if you ask me. What's even cool to me is that up until today I didn't really notice all the cell towers around my town until you actually use this app and then look around and sure enough, there's the tower that the blue dot indicates. I found it kinda funny myself, but it's nice to see which tower you're using. For those of you with crappy signals in certain areas, well... now you can see exactly how far and in which direction that tower that you're connected to is.