I saw this on MAKE magazine and was immediately charmed by it.
The recent TRON remake/sequel generated the inevitable avalanche of toys, including keen die-cast light cycles. As soon as I saw those in the store, I had a game like this in mind, but the best I could manage would be something crude, with material like wood making the light trails. This lightboard was hand etched by a chap who posted a report on it on MAKEzine.
Simply gorgeous. I want one.