When Cubelets first came out, I wrote a review of them. And I see now they're targeting education with them. Which makes sense, given how expensive they are. You'd need a lot to do really interesting things with, which a class can probably justify the cost of, while most parents couldn't.

Anyway, there's a fundamental difference between them and the construction sets of old. With the likes of Lego or Meccano, you could model things that already existed. Buildings were made of bricks, machines of metal plates, girders, wheels and nuts and bolts.

It's hard to point to everyday things made in a Cubelets-like way though. So they're a case of a construction set existing before the real-world things you're supposed to model with them exist.