"LaHood calls the problem(texting while driving) "a national epidemic," saying studies show distracted driving is particularly acute among teenage and young adult drivers."
Current solutions (Apps) are just "band-aids". The real solution is to require that ALL phones have as part of the operating system (OS) the ability to disable themselves when moving faster than 12 mpg but allow for 911 calls. This will solve the problem and if you really need to call. just pull over!