Costly Cell Data Plans Montana

If you've ever made calls or used data services on your cellular phone using overseas roaming, you've probably encountered sticker shock. Talk or e-mail too much, and your bill could skyrocket.

AT&T now offers international data rate plans. While it previously had such plans for laptops and BlackBerry devices, the plans now extend to hand-helds and smart phones.

For $45 a month (for a smart phone with a numeric keypad) or $70 a month (if your device has a QWERTY keyboard), AT&T will allow you unlimited domestic data (normally $20 or $45 a month for smart phones and full-keyboard devices, respectively) plus up to 20MB of data in some 30 other countries. Extra megabytes cost $5 each.