Talking to the team responsible for releasing the NeoMyth cartridge for the Famicom and NES I was told that the device isn't in production yet as they're still working on some technical issues with the cartridge.

This means that the cartridge most likely will slip it's planned August release, but further info will follow. Also, there hasn't been any words about the release of the Neomyth SNES and N64 carts which also have a planned release just around the corner.