Recently, I switched over to a Blackberry Tour. My good friend told me about this signal location app, and I have been hooked ever since. Basically, this app looks at what site or tower your phone is connected to, grabs the GPS location from the site, and plots it on a map. This takes all the work out of how I used to do it. (however, it still relies on sometimes incorrect location data from the sites. Some sprint sites have their location totally wrong, and those with no location are put somewhere over the atlantic ocean.) I have some sites located in Lansing, MI, Buffalo, NY, and many from the Long Island-Queens-Brooklyn area. I will try to update this file as I go on. Enjoy!