I don't know happened.. but when I hold my Z30 dan wanna to make a phone call... I little bits surprised and think wow my phone i cool and look like 3 Dimensions..,, I can look into somethimg like room in my Z30..
I think he's just admiring how everything is so inter-connected in BB10, where the drop shadows and over laying menus seem to give a "3D" effect, per se.