See this for a brief description.
In a nutshell, PreText allows you to ignore text messages you receive while driving. It does this by doing a couple helpful things.
- It automatically responds to the person who texted you, letting them know you can't respond at the moment because you're driving, but that you'll respond as soon as you can.
- It optionally reads the texts you receive aloud to you using Android's Text to Speech functionality.
- It reports information to you like: where you were when you received the text (viewable on a map), how fast you were going, your latitude, longitude and bearing...
- Makes it easy for you to call the person who texted you with a few thumb touches.
If you have an Android phone or know someone who does, give it a whirl, it costs about what a cup of coffee does.