SMS repeat Notification

[Deltatristar500]

Is there a hack or a simple free app to make the touch pro repeat its text message notification if not answered. It only rings once or vibrates once and then just blinks the lights after that. I wish there was a sound or something ever minute or 2 minutes. For my 800W I used treo alets which worked well. I know that repeat option is grayed out on the menu.

Thanks,