Been around three countries recently (2014) in the Middle East and how people are using their handset & how countries are setting up the rules is not so promising. In Lebanon & Saudi Arabia, although there is a rule regarding using your mobile phone while driving, over 40% of drivers are using their handsets while driving, mostly typing or reading while driving. OTT has become a very hazardous enabler in these countries since the police is not fining OTT-drivers (let us call them that).
On the other hand, in UAE, what I have noticed is that people rarely use their handsets while driving, whether OTT or talking over phone. The reason: huge fines & black points on your driving license! If you got caught with your hand in the cookie jar, the police will take you to court & fine you some hefty amount of money.
OTT & mobile tech helps us make out life simpler & easier, not a tool a death! Drive carefully. Don’t OTT & drive.