Here is a link to city-id. It tells you the originating city that the call is coming from plus any other caller ID info (including pic if it's in your contact) Yes, I'm running it with your current unlock program on an XV6700

http://www.ppcgeeks.com/files/cityid_21_146.zip

What happenes is that with the unlock prog, I can't answer the phone via button about 50% of the time.