To help keep track of AT&T's various offerings, the carrier also launched an AT&T Travel Guide where you can input your international itinerary and get specific roaming rates.
Besides the new smartphone plan, AT&T offers other packages for data use while traveling abroad. The Unlimited BlackBerry International plan lets you receive unlimited e-mail for $69.99 per month. iPhone users have two plans available. For $24.99 per month, you can get 20MB of data in 36 countries, or for $59.99, you can get 50MB of data in 36 countries.
For Windows Mobile and Palm device owners, $24.99 will give you 20MB of data in the same 36 countries. See CNET's quick guide to world phones for a full rundown on roaming packages from all of the major carriers.