I think it's kind of hard to understand what these are without more experience with them, but imagine lego bricks as a mesh network of smart devices... it's not just "brick plays a sound when you press it" but can almost start to be like a block programming language... if x block is near some minifig then y block makes a sound

if this catches on it can have a big unlocking effect for novel creation, kind of like redstone and switches did in minecraft