Biran Hamma’s Windows Mobile SMS Sync is freeware which allows a user to backup SMS messages to their desktop. It includes a desktop application for viewing and searching messages and a Wizard for uploading messages to a SQL server database.
It has been updated to version 1.2, which should help cure problems international users may have been having with the software, and also includes some new features.
The application works on XP and Vista and with both Windows Mobile 5 and 6. On the handheld it requires .Net CF 2.0 (which is built-in to all Windows Mobile 6.1 handhelds) or even the newer .Net CF 3.5
Read more and download the application from BrianHamma.com here.