I would have to think Kyosho would be going in a different direction when marketing in the US. Their current strategy in the Japan/test market seems to be to prevent too many, if any, of these being sold in the US until Kyosho is ready to market them here.
If they are going to be at the RCX
(dNaNo @ RCX) next week, then you can bet they are planning to market them here soon.