Yes this is very good news for the 420A community... all of it. ;)

It's comething I've been working on for a few months now and finally it works. It's awesome, the potential is amazing.
Basically you can program you complete ignition advance map, using a 12x12 table just like the fuel side of things.

I think I'm going to be charging $310 shipped for the Megasquirt setup for the 420A, for both spark and ignition. Or still charge $285 shipped for the Megasquirt setup for Fuel only.
I'll probably start offering the ignition modules for sale that are needed to drive the stock coil pack also.

If anyone has any questions, please post them here so that everyone can learn from it.

The next thing to work on is Knock Detection using the factory knock sensor. ;)