PowerSMS is a new Text Messaging software for Windows Mobile that will delight those who do a lot of messaging. It has extra helpful features such:
1. Group SMS
2. Auto Reply
3. Schedule Reply
2. Backup & Restore
The beta is now available for download here
It is compatible with WM 5, 6 & 6.1 OS. Thanks to Coolsmartphone.com for info.

Looks cool, think it will be something I would buy when I finally get the Touch Pro.

I have a similar software for my Palm to do scheduled SMS, which I think is very useful.

PowerSMS updated to version 1.3!

PowerSMS 1.3 has just been released. The main new feature is Calendar integration for Auto Reply. Now you can have Auto Reply turn on and off based on your Calendar. When your Calendar is Busy, it will turn ON. When your calendar has no appointments, or shows Free/Tentative/Out Of Office, Auto Reply will turn OFF.

Also improved touch support for some of the dropdown lists in the Auto Reply dialog box and other minor tweaks.

Is there a limit to the number of recipients per send.