I am going to be selling this through a chip-upgrade service, i.e. send me a chip/.bin and I will patch in the launch control code. I am also going to be offering this as part of a more comprehensive chip upgrade with some other features.
I just added a new feature: The launch RPM can be set via the potentiometer on the side of the ECU (the thing you turn to check error codes). Just turn it to quickly adjust the launch RPM between 2000-6500. Works great!