Just an FYI, but in case you missed it. The IPhone software tracks your location by Lat and Long and stores in unencrypted on your phone and every computer you sync it to. Anyone with access to your device or computer can see where you have been. This has been going on for the last year. It just became public but Apple has yet to make any statements about why or what the info will be used for or eho has access to it. They did not ask your permissison or tell you before they added this "feature" to the Ios4 that runs your phones.
I expect a run on service calls to extract the data from computers as more wives find out about this.
Have fun out there!