I had heard from an in store Weber rep that he thought that this was to be offered in the US in 2015. I'm not holding my breath though. Certainly cool looking!
I received one of these today (from amazon.de). An interesting thing is that the hardware is metric, not Imperial as all of my domestic Weber bits are. I've never considered that euro or other Weber items use metric hardware. I presume if they brought it to the US, it would have 1/4-20 hardware, like everything else Weber that I own.