A couple of days ago I linked to this post by Tim Maly which is full of interesting thoughts sparked by attending the XOXO conference. I wrote then: “Makes me want an at least partly explicit socialist / social democratic tech conference.”
They're not “helium” balloons. If they were they wouldn't have lights inside them, and wouldn't need to be on top of the rigid poles you see in the photographs. Still beautiful, but not helium.
For those of you who like to have the latest version to hand, I’ve updated the family tree.