We sure do!
Thanks for the interest in getting one, PrIeSt - don't want to count any chickens before they hatch but things look promising.
Range is a tricky thing. It needs line of sight for optimal range and generally any living thing (leafy trees, meaty humans, etc) are really good at stopping/soaking up radio signals. Antenna position is also important (the higher the better). I don't want to make any promises about range until I have had a chance to actually test things under practical conditions.
That being said, unless something is actually blocking the radio signals, these units will be able to operate over longer ranges than you'd ever actually reasonably play a game over.