Been using Beta for a little while and I think it's good if a little flakey. The idea of having an HTML5 OS UX that transends device has great appeal to me.
As it is, W8 probably won't be that because the "cool fad" population doesn't understand what their consuming mentality does to technology, but the idea borders on revolutionary if you actually stop and think about it for a minute: It has the potential to actually go against the global corporate growth ethos of diversity of product.
He's a kid, but I agree with is fanboy accusation comments.