Congratulations on the Scala purchase, now for the hubby issue...I, too have a self-appointed full time track coach who instructs me every moment while riding - Just don't worry about all the comments and helpful hints, it's when he stops giving them that you should worry, (just kidding).
We talk constantly while riding, which would drive most people crazy. We discuss the roads, the bikes, the weather, the tires, the ATV sitting beside the road, if the dog is moving on that front porch, etc. This constant babble has saved both our bacon on numerous occasions as it helps draw your attention to issues even before they come into your field of vision. When riding with a group we always try to split up, one will ride to the front of the group and the other to the back. We're constantly counting bikes in front and back of us and relaying the information to each other. We've used the scala system to call 911 without removing helmets, and my favorite, discussing things while off the bike at gas stations - "how much was your gas?" I wouldn't want to ride without it now.