"Homing Pigeon" is an app that forwards the SMS received in one phone to another phone. It does not (and never will) use the Internet to forward the messages, they are forwarded using the native SMS service. Only new messages will be forwarded after installing this app; the existing ones will not be forwarded. This app is not intended to perform backup.
*THE MESSAGES MAY BE CHARGED ACCORDING TO YOUR MOBILE PLAN. THIS APP DOES NOT SEND MESSAGES "FOR FREE", THEY ARE SENT VIA YOUR MOBILE CARRIER.*
Features: - Forward received SMS to another phone; - Choose to forward all the received SMS or only those from people in the address book.
New features are coming soon.
"Homing Pigeon" is an open source project. More details at http://code.google.com/p/homingpigeon/