I think i read about that in time magazine or something a few months ago. It looks ugly, but that might just be because its not what we're used to. If car only had those in 50 years, no one would mind. I think its a neat idea, and it would solve the problem of punctures, but I'm sure they'd have their bad side too.
Like I wonder if the "spokes" of the tire will wear out and break? Because they seem more vulnerable in so many segments. And what if rocks and dirt get in there and get stuck? Won't they cause the wheels to be out of balance?