As someone who already dreads smartphones coming out at lunch or dinner outings with friends, I already hate the idea of people's wrists lighting up and distracting from conversation. :)
Believe me, this is better. The curiosity urge is what gets the phone pulled out of the pocket. From there, it's very low friction to decide to open it up and start screwing around. Separating the two acts has, for me, been an improvement.