There is an international report in a reputable medium (Reuters AlertNet) about a text messaging for disaster warning development in Sri Lanka. This is a request to whoever who is responsible for this project to give it publicity within the country, not limiting the publicity to foreign media.
“Sri Lanka has also been trying to harness the mobile phone as a powerful warning device, and is working on a text message alert system to give people a crucial few minutes to seek safety if another tsunami hits.”

The story that contains this claim is at Alertnet: