After ACK asked that question...
Now the wait is for Mekton Zero.
Mike Pondsmith stepped away from P&P game design for the more stable paycheck of the computer games business after his son (and now fellow game designer) Cody was born. that computer gaming has a more stable paycheck than our hobby should give budding game designers some pause...
As for Jovian Chronicles, I have the original book for Mekton and followed it briefly into its own system, but all the pretty layout and art could not hide a system that was disappointing in too many ways to ever try playing it.