Wow, this looks really cool; I'm definitely going to play with this. Has anybody used it for anything yet? I'm wondering what the speed is like. Since it's pure

Wow, this looks really cool; I'm definitely going to play with this. Has anybody used it for anything yet? I'm wondering what the speed is like. Since it's pure javascript, I'd imagine it would be quite a bit slower than R. However the demo seems quite responsive, so maybe I'll be pleasantly surprised.