We now have stock of our SFX6.4 sound module. This is the same as the previous SFX6.3 except that it's microcontroller now has twice as much Flash program space at 256KBytes. This will allow us plenty of room to grow and add new features. We made this move because the previous SFX6.3 was maxed out at 128KBytes of program space.
The currently shipping release is SFXPC3.0.5e.