Talking about 'texting' at the wheel is archaic and missing the point.
Drivers nowadays can (and some do) interact with mobile data devices and with built-in car infotaintment systems in very many ways.
This includes Facebook, Twitter, Instargram, Whatsapp, Skype, and many more.
There are no regulations and no agreed standard.
If you use Waze, it will display advertising for local fast food restaurants as you drive, which is insane, but not illegal.
And you can fit an Android-based unit to replace COMAND, which gives you a complete portable computer in your dash, including the capability of running email software and watching streaming media, and that's not illegal either.
(I meant that it is not illegal to have this device in your car, not the it is not illegal to use it in this way).
We need a proper debate about what can and cannot be done... followed by regulations fit for today, and not just keep talking about 'texting'...