SDA (SMS Delete All) deletes all the SMS present on your cell phone using an infrared link.
When it is done, it still goes one, in case new SMS arrive.
This program is useful when you have dozens of SMS queued at your provider location and you want to get rid of them (e.g., cascading alarms).
It has been tested on a Siemens S35i phone
SMobile SMS Guard for Treo - Now you can have total control over all of your Treo's SMS messages. SMobile's SMS Guard successfully blocks messages from unauthorized senders without interrupting your authorized messages. With SMS Guard you can customize your whitelist and blacklist so that only wanted SMS messages will remain on the device
