Windows Mobile SMS Sync is freeware which allows a user to backup the 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.
The application works on XP and Vista and with both Windows Mobile 5 and 6. On the handheld it requires
.Net CF 3.5
Read more and download the application from
BrianHamma.com here.
http://www.brianhama.com/Software/SMSSync.aspx
Edit: Update 1.2 is up.come check it out!
http://www.brianhama.com/Software/SMSSync.aspx