Prepaid data SIMs

Telestial (800/707-0031, www.telestial.com) has a data service for phones on its prepaid SIMs, and while AT&T’s international data roaming rate is about 20¢ per megabyte, Telestial’s prepaid data rates run 5¢-3¢ per megabyte, depending on the country. The service is available on its line of cards, which run from the $5 “Passport Lite,” to the $59 Explorer SIM.