ANONYMOUS The description says "the US, Switzerland and 13 countries" but only the US and Switzerland have anything listed. Not that that's a great surprise - in my own city, no frequency is clean for more that a short drive. (Version 2.0)
JOHN C. TULL This tool does what it says it will do, but the city list is not nearly complete (not surprising; no Reno, NV for me). It could be improved upon by allowing searching as well as sorting by state. Not bad.
As far as the last comment, get a clue. You are not stating anything about this software. As far as iTrip and Griffin support, I had a bad unit and they were prompt and courteous about sending a replacement. Try contacting them. (Version 1.0)
ANONYMOUS Over all I am very unhappy with the iTrip. I have problems locking in a frequency. I also find it broadcasts a loud sqeal when changing to the next song on the ipod. Along with that the blue light flashes and and the itrip seems to be trying to relock into the selected frequency. (Version 1.0)