OHGrandma - you totally described my DS7 as well. Our preschool teachers commented on this at conferences. "He always follows what's going on, but he's always moving". They were probably insinuating ADHD at the time, but fortunately, I was too dense to realize it. And when things are more fast paced, I think he tends to focus on one thing better. When's it a complex lego set or the like, he'll sit still for hours. Great point.

ACS - your teacher who recognized this trait in your son sounds like a gem!