Are tag clusters on del.icio.us new?

I somehow can’t seem to recollect seeing this till now, but it’s something I wanted for a while.

When I file an article like this one, I used the tags “google” and “hacking”. I read that as “google hacking” in my mind. But when I click on “google” in my tag cloud on del.icio.us, I couldn’t see the fact that it was also tagged as “hacking”.

And I wanted to be able to see that in a cloud.

I just spotted that on del.icio.us now. Maybe it’s a question of not seeing a feature till you need one, but in any case, props to the del.icio.us team for this feature.