AT&T has released a free application called the AT&T Call International App that is designed to let wireless users in the U.S. make inexpensive international long distance calls with their iPhones. The service uses your existing wireless service, and you can actually use the service when overseas when connected to a Wi-Fi hotspot.
The rates, which are found on AT&T's Call International web page, start at 2¢ per minute to Canada and calls to wireline phones in countries such as China, France, Germany, and the U.K. are only 4¢ a minute.
Unlike many of the international calling plans that exist with traditional landline carriers, there are no monthly c