I would assume that if the phone company went to the effort of putting a gps in a phone (ie. antenna, extra circuitry), that would make the information it obtained available to the user (by means of a map etc.).
That being said, I wouldn't be surprised if the government had the phone companies put a gps in every phone for the purpose of tracking people.
I'm going to add this so I don't get sued, or assassinated. The above paragraph reflects my own thoughts and I have no evidence of this actually occurring.