So when I'm in civvies driving to dinner, am I on "official business"? Can I get reimbursed for that? My interpretation of it is, if it's official business, then I should be in a gov-V or reimbursed - i.e. out to Pace RDO or as duty driver. Which ironically means my upcoming PCS will probably be "official business", and I guarantee I will be texting just to stay awake.
Texting while driving is more dangerous than talking on the phone while driving. At least you keep your eyes on the road when you're talking.
As usual, let's ban something because a bunch of novices are dangerous. Why not ban driving, because new drivers suck, too? Most text junkies I know can type without looking on the 9 digit keypad or a blackberry type with hard buttions (I could when I had a blackberry). It's a bit harder without the tactile feedback on the iPhone but I'll hold it up to the wheel so it's in my scan and I'm not heads-down.
It's a useful tool. I typically check weather on the phone before pulling into work in the morning, and I absolutely hate pulling over on base just to take a call. If you have some numbnuts having a chat on text, banning texting isn't going to guarantee their attention's going to be on the road.
Oh and just for fun, a simulation on how much worse you drive when you text. I actually did just as well - maybe it's that instrument scan practice
http://www.nytimes.com/interactive/2009/07/19/technology/20090719-driving-game.html