AT&T introduced two new international data plans for its iPhone customers: 100 MB or 200 MB a month.
For discounted international data usage in 67 countries, the 100 MB iPhone plan is available for an additional $119.99 a month, while the 200 MB plan costs an additional $199.99 a month. These new plans are in addition to existing plans for smartphones, including iPhone, which offer 20 MB and 50 MB in the same countries. There are no long-term commitments required.http://www.att.com