When used in conjunction with Pebboard on the Pebble store, you can enter a phone number and message on your Pebble smartwatch and send it.
You must have the Pebble application, Pebboard, and this application in order for it to work.
This application sends the SMS and serves as a guide on how to enter text on Pebboard.
It only works if you enter a valid 9 digit phone number in the Pebboard application. A successful SMS toast will show briefly, if you didn't enter 9 digits a toast will show telling you.