nothing you can't see on the internet already at this point. the dii booth is right near entrance so its always swarmed.
here's how NAB works. you walk up to booth, person from said booth approaches you, you ask question about new product, person looks confused and suggests you talk to person over there, with 30 people surrounding them. you walk away and google for the answer.
yesterday i was mostly focused on sound production gear but today i'm going to look at more drone based stuff.